Journal of Korean Medical Science (JKMS): influential flagship medical journal in the Republic of Korea

© Hong Kong Academy of Medicine. CC BY-NC-ND 4.0
 
EDITORIAL
Journal of Korean Medical Science (JKMS): influential flagship medical journal in the Republic of Korea
Jin-Hong Yoo, MD, PhD1,2,3; Jong-Min Kim, MD, PhD1,4; Kyung Pyo Hong, MD, PhD1,5; Jongmin Lee, MD, PhD6,7; Sung-Tae Hong, MD, PhD8,9
1 Deputy Editor, Journal of Korean Medical Science, Korea
2 Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
3 Division of Infectious Diseases, Department of Internal Medicine, Bucheon St Mary’s Hospital, Bucheon, Korea
4 Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
5 Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Korea
6 Director of International Affairs, the Korean Academy of Medical Sciences, Korea
7 Department of Radiology, Kyungpook National University Hospital, Daegu, Korea
8 Editor-in-Chief, Journal of Korean Medical Science, Korea
9 Department of Tropical Medicine and Parasitology, Seoul National University College of Medicine, Seoul, Korea
 
Corresponding author: Dr Sung-Tae Hong (hst@snu.ac.kr)
 
 Full paper in PDF
 
The Journal of Korean Medical Science (JKMS; https://jkms.org/") is an international, peer-reviewed Open Access journal of medicine published weekly in English. The journal is published by the Korean Academy of Medical Sciences and the Korean Medical Association. The JKMS aims to publish evidence-based scientifically written articles from various disciplines of the medical sciences. The journal welcomes articles of general interest to medical researchers, especially those that contain original information. Articles on the clinical evaluation of drugs and other therapies, epidemiologic studies of the general population, studies on pathogenic organisms and toxic materials, and the toxicities and adverse effects of therapeutics are welcome. The JKMS was founded in 1986 and was indexed in MEDLINE in 1989. In 1999, the journal launched a website and was included in Science Citation Index Expanded (SCIE). Through steady efforts thereafter, JKMS was finally included in Science Citation Index in 2005. In 2007, JKMS established its own online submission system, and in 2017, began to use a submission system provided by Editorial Manager (Aries Systems Corporation, North Andover [MA], United States). Since 2010, JKMS has been published all articles as Open Access under the terms of the Creative Commons Attribution-NonCommercial 4.0 International license. The JKMS is indexed/tracked/covered by MEDLINE, PubMed, PubMed Central, Web of Science (SCIE), BIOSIS Previews, Scopus, Embase, Chemical Abstracts Service, KoreaMed, Synapse, KoMCI, KCI, and Google Scholar. In 2016, JKMS became a member journal of the International Committee of Medical Journal Editors (http://icmje.org/). The 2020 Journal Impact Factor of JKMS is 2.153 and total citation counts 9573 (Clarivate Analytics, 2021) while the CiteScore 2020 is 4.0 (Scopus, 2021).
 
Since boldly launching weekly publication in 2018, JKMS is currently published every Monday, 50 issues a year.1 The page layout of the articles was edited to a single-column format to provide the online audience with better readability and visuality. Article categories include Original Article, Review Article, Special Article, Case Report, Brief Communication, Editorial, Opinion, Correspondence, and Images in this Issue. Thanks to weekly publication, JKMS significantly reduced the interval between the submission of manuscripts and publication. This advantage is particularly evident in the rapid publication of articles in the field of coronavirus disease 2019 (COVID-19). For example, the first case report of COVID-19 in Korea was submitted on 31 January 2020, accepted on 2 February, and published online on 3 February.2 As of 9 August 2021, 177 articles relating to COVID-19 have been published in JKMS (https://jkms.org/index.php?main=COVID-19) and five of them have received >100 citations.3 4 5 6 In 2020, JKMS received 1614 submissions, and the acceptance rate was 26.1%. In 2020, a huge rush of COVID-19 papers was received and a special section was prepared.
 
The peer review of manuscripts is the most important step in journal publishing. We always thank dedicated reviewers for providing feedback to authors so that the manuscripts can be published in their best form.7 The JKMS evaluates reviewers by combining the number of complete reviews and the scores of their review comments, and awards the highest rated reviewers the Best Reviewer Award at the general assembly of the Korean Academy of Medical Sciences every year (https://jkms.org/index.php?main=reviewer).
 
The Yoon Kwang-Yull Medical Prize was jointly established by the Korean Academy of Medical Sciences and the Gasong Foundation in 2008. The prize was established to promote the noble spirit of late founder Yoon Kwang-Yull’s devotion to social service and academic research support. The prize is given to the author who has published excellent papers in JKMS in the past decade and contributed the most to spreading the outstanding medical research from Korea to the world. In 2021, Dr Sang-joon Park (Myongji Hospital, Goyang, Korea) received the 12th prize (https://jkms.org/index.php?main=prize).
 
The JKMS is an influential flagship journal of Korea. It adheres to global standards of editing and publishing for the purpose of leading research in medicine, proposing and discussing controversial issues, and archiving evidence-based science. It introduces new editing strategy and achieves publishing updates and publication ethics in Korea. Furthermore, it provides a publication platform for international researchers with trustworthy rapid publishing following global standards.
 
The staff of JKMS include an Editor-in-Chief (Dr Sung-Tae Hong), three deputy editors (Dr Kyung Pyo Hong, Dr Jin-Hong Yoo, Dr Jong-Min Kim), a managing editor (Dr Jong-Min Kim), four section editors (Dr Armen Yuri Gasparyan, Dr Kyung Pyo Hong, Dr Jin-Hong Yoo, Dr Jong-Min Kim), one language editor (Ms Allison B Alley), one statistics editor (Dr Moo-Song Lee), one image editor (Dr Jeehyoung Kim), one social media editor (Dr Olena Zimba), 13 executive board members, and 77 members of 37 subspecialties as the editorial board (ttps://jkms.org/index.php?main=exboard). Two assistant editors (Ms Ye-jin Lee, Ms So-yeon Jung) work in the editorial office. Manuscript editing, online publishing, and website management services are provided by XMLink Publishing Co. (https://xmlink.kr/; Seoul, Korea).
 
The JKMS will continue to fulfil its mission as an authentic scholarly journal providing global readers with academically validated theories. In this context, we are sincerely pleased to have the opportunity to introduce the Hong Kong Medical Journal (HKMJ) under agreement between the Korean Academy of Medical Sciences and the Hong Kong Academy of Medicine.8 The JKMS and HKMJ will collaborate for mutual benefit and synergistic contribution in medical science.
 
References
1. Hong ST. Fostering strategic changes in publishing: Journal of Korean Medical Science in 2018. J Korean Med Sci 2018;33:e8. Crossref
2. Kim JY, Choe PG, Oh Y, et al. The first case of 2019 novel coronavirus pneumonia imported into Korea from Wuhan, China: implication for infection prevention and control measures. J Korean Med Sci 2020;35:e61. Crossref
3. Korean Society of Infectious Diseases, Korean Society of Pediatric Infectious Diseases, Korean Society of Epidemiology, Korean Society for Antimicrobial Therapy, Korean Society for Healthcare-associated Infection Control and Prevention, Korea Centers for Disease Control and Prevention. Report on the epidemiological features of coronavirus disease 2019 (COVID-19) outbreak in the Republic of Korea from January 19 to March 2, 2020. J Korean Med Sci 2020;35:e112. Crossref
4. Kim ES, Chin BS, Kang CK, et al. Clinical course and outcomes of patients with severe acute respiratory syndrome coronavirus 2 infection: a preliminary report of the first 28 patients from the Korean cohort study on COVID-19. J Korean Med Sci 2020;35:e142. Crossref
5. Ahn JY, Sohn Y, Lee SH, et al. Use of convalescent plasma therapy in two COVID-19 patients with acute respiratory distress syndrome in Korea. J Korean Med Sci 2020;35:e149. Crossref
6. Lee Y, Min P, Lee S, Kim SW. Prevalence and duration of acute loss of smell or taste in COVID-19 patients. J Korean Med Sci 2020;35:e174. Crossref
7. Hong ST. Appreciation to reviewers for the Journal of Korean Medical Science in 2020. J Korean Med Sci 2021;36:e60. Crossref
8. Li KK, Ma ES, Lui RN, Huang J, Xue H, Wong MC. Hong Kong Medical Journal—the Premier General Medical Journal in Hong Kong. J Korean Med Sci 2021;36:e226. Crossref

mRNA COVID vaccine and myocarditis in adolescents

Hong Kong Med J 2021;27:Epub 16 Aug 2021
© Hong Kong Academy of Medicine. CC BY-NC-ND 4.0
 
EDITORIAL
mRNA COVID vaccine and myocarditis in adolescents
Mike YW Kwan, MSc(Applied Epidemiology) (CUHK), FHKAM (Paediatrics)1 #; Gilbert T Chua, MB, BS, FHKAM (Paediatrics)2 #; CB Chow, MD, FHKAM (Paediatrics)1,2 #; Sabrina SL Tsao, MB, BS(UK), FACC2; Kelvin KW To, MD, FRCPath3; KY Yuen, MD, FRCPath3; YL Lau, MD (Hon), FRCPCH2; Patrick Ip, MPH, FHKAM (Paediatrics)2
1 Department of Paediatrics and Adolescent Medicine, Princess Margaret Hospital, Hong Kong
2 Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
3 Department of Microbiology, Carol Yu Centre for Infection, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
# These authors contributed equally to the work.
 
Corresponding authors: Dr KY Yuen (kyyuen@hku.hk), Dr YL Lau (lauylung@hku.hk), Dr Patrick Ip (patricip@hku.hk)
 
 Full paper in PDF
 
 
In Hong Kong, the coronavirus disease 2019 (COVID-19) vaccination programme started on 26 February 2021. CoronaVac (an inactivated virus vaccine developed by Sinovac) and Comirnaty (BNT162b2 mRNA vaccine co-developed by BioNTech and Pfizer, and manufactured and distributed in China by Fosun Pharma) are the available formulations for public use. Comirnaty is safe and provides good antibody response, including for patients aged 12 to 15 years, with clinical efficacy in protecting against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection of 100%.1 On 14 June 2021, the Food and Health Bureau, Hong Kong SAR Government lowered the age limit for receiving the Comirnaty vaccine to ≥12 years.2
 
Since April 2021, there have been reports that myocarditis and pericarditis occur more frequently in adolescents and young adults after mRNA COVID-19 vaccinations internationally.3 4 5 In Hong Kong, Comirnaty is the only mRNA technology platform COVID-19 vaccine available, but others are available elsewhere (eg, from Moderna).
 
Myocarditis and pericarditis have many virological and immunological causes, and are known to occur after vaccination; for example, the incidence of myocarditis after smallpox vaccination is around 12 to 16.1 per million vaccinated individuals.6 Myocarditis can also occur after SARS-CoV-2 infection alone or as a consequence of multisystem inflammatory syndrome in children after COVID-19 or paediatric inflammatory multisystem syndrome temporally associated with SARS-CoV-2.3 7 8
 
Reported cases of myocarditis after mRNA COVID-19 vaccination are mostly male adolescents and young adults aged between 12 and 24 years who received the second dose of the mRNA vaccine.9 10 11 12 13 14 These heart complications are exceedingly rare, but are increasingly reported as hundreds of million doses of mRNA COVID-19 vaccines have been administered worldwide.4 5 9 10 The typical symptoms of myocarditis and pericarditis are chest pain, shortness of breath, and palpitations occurring within 1 week (usually 2-4 days) after vaccination. The condition is mild in most of the affected individuals, with only minimal treatment required and full recovery within a few days.
 
Although myocarditis and pericarditis have many virological and immunological causes, a causal link was suspected due to the immunological reaction to the mRNA COVID-19 vaccine. Individuals are recommended to rest and refrain from heavy strenuous activities for 1 week after mRNA COVID-19 vaccination, which will be helpful during the rare occurrence of myocarditis or pericarditis. Individuals experiencing chest pain, shortness of breath, or palpitations after receiving the mRNA vaccine are advised to seek immediate medical attention.
 
Myocarditis and pericarditis are diagnosed according to the Brighton Collaboration case definitions,11 which include clinical symptoms (cardiac or non-specific symptoms), elevated myocardial biomarkers (troponin T, troponin I, or CK myocardial band), electrocardiographic, echocardiogram or cardiac magnetic resonance abnormalities and with other alternative aetiologies for symptoms excluded.12 Supportive therapy is the mainstay of treatment with cardiac treatment and intervention if needed. Individuals with myocarditis/pericarditis are advised to rest until symptoms resolved.12
 
Based on the latest scientific data, the benefits of COVID-19 vaccination to the individual, family members, and society outweigh the reported known and potential risks of vaccination (including the possibility of myocarditis and pericarditis) in the current pandemic.13 Owing to the recent emergence of SARS-CoV-2 variants with increased transmissibility, higher rates of vaccination will be required to achieve sufficient herd immunity to prevent further community spread and allow society to return to normal.
 
On 30 June 2021, a joint consensus statement was issued by the Hong Kong Paediatric Society, The Hong Kong Society for Paediatric Immunology Allergy and Infectious Diseases, the Hong Kong College of Paediatric Nursing, and the Hong Kong Paediatric Nurses Association.14 The consensus statement appeals to children and adolescents (aged ≥12 years), parents, adult household members, and child-carers to receive the COVID-19 vaccine for self-protection, and for the physical health and long-term psychosocial development of all children in Hong Kong.
 
The Centers for Disease Control and Prevention and the Food and Health Bureau of Hong Kong SAR Government endorse the use of Comirnaty vaccine in adolescents mainly because the benefits of vaccination exceed the risks of SARS-CoV-2 infection.15 Although there is no alternative vaccine for this age-group currently available, data are being gathered on CoronaVac, which utilises the inactivated virus platform. If this proves safe and effective for children and adolescents, and is approved for use, CoronaVac may be an alternative for this age-group in Hong Kong.
 
Author contributions
All authors contributed to the concept or design of the study, acquisition of the data, analysis or interpretation of the data, drafting of the manuscript, and critical revision of the manuscript for important intellectual content. All authors had full access to the data, contributed to the study, approved the final version for publication, and take responsibility for its accuracy and integrity.
 
Conflicts of interest
All authors have disclosed no conflicts of interest.
 
References
1. Frenck RW, Jr, Klein NP, Kitchin N, et al. Safety, immunogenicity, and efficacy of the BNT162b2 Covid-19 vaccine in adolescents. N Engl J Med 2021;385:239-50. Crossref
2. Persons aged 12 to 15 can make reservations to receive BioNTech vaccine from tomorrow. Press release. Hong Kong SAR Government. 10 Jun 2021. Available from: https://www.info.gov.hk/gia/general/202106/10/P2021061000556.htm. Accessed 22 Jul 2021.
3. Siripanthong B, Nazarian S, Muser D, et al. Recognizing COVID-19–related myocarditis: The possible pathophysiology and proposed guideline for diagnosis and management. Heart Rhythm 2020;17:1463-71. Crossref
4. Marshall M, Ferguson ID, Lewis P, et al. Symptomatic acute myocarditis in seven adolescents following Pfizer-BioNTech COVID-19 vaccination. Pediatrics 2021 Jun 4. Epub ahead of print.
5. Starekova J, Bluemke DA, Bradham WS, et al. Evaluation for myocarditis in competitive student athletes recovering from coronavirus disease 2019 with cardiac magnetic resonance imaging. JAMA Cardiol 2021;6:945-50. Crossref
6. Keinath K, Church T, Kurth B, Hulten E. Myocarditis secondary to smallpox vaccination. BMJ Case Rep 2018;2018:bcr2017223523. Crossref
7. Feldstein LR, Tenforde MW, Friedman KG, et al. Characteristics and outcomes of US children and adolescents with multisystem inflammatory syndrome in children (MIS-C) compared with severe acute COVID-19. JAMA 2021;325:1074-87. Crossref
8. Whittaker E, Bamford A, Kenny J, et al. Clinical characteristics of 58 children with a pediatric inflammatory multisystem syndrome temporally associated with SARS-CoV-2. JAMA 2020;324:259-69. Crossref
9. Gargano JW, Wallace M, Hadler SC, et al. Use of mRNA COVID-19 vaccine after reports of myocarditis among vaccine recipients: update from the Advisory Committee on Immunization Practices—United States, June 2021. MMWR Morb Mortal Wkly Rep 2021;70:977-82. Crossref
10. Abu Mouch S, Roguin A, Hellou E, et al. Myocarditis following COVID-19 mRNA vaccination. Vaccine 2021;39:3790-3. Crossref
11. Myocarditis/pericarditis case definition. 16 July 2021. Available from: https://brightoncollaboration.us/myocarditis-case-definition-update/. Accessed 22 Jul 2021.
12. Maron BJ, Udelson JE, Bonow RO, et al. Eligibility and disqualification recommendations for competitive athletes with cardiovascular abnormalities: Task Force 3: Hypertrophic cardiomyopathy, arrhythmogenic right ventricular cardiomyopathy and other cardiomyopathies, and myocarditis: a scientific statement from the American Heart Association and American College of Cardiology. Circulation 2015;132:e273-80. Crossref
13. Wallace M, Oliver S. COVID-19 mRNA vaccines in adolescents and young adults: benefit-risk discussion. ACIP Meeting. 23 June 2021. Available from: https://www.cdc.gov/vaccines/acip/meetings/downloads/slides-2021-06/05-COVID-Wallace-508.pdf. Accessed 23 Jul 2021.
14. Joint Statement of The Hong Kong Paediatric Society, The Hong Kong Society for Paediatric Immunology Allergy and Infectious Diseases, Hong Kong College of Paediatric Nursing and Hong Kong Paediatric Nurses Association on occurrence of myocarditis and pericarditis after mRNA COVID-19 vaccination (30 June 2021). Available from: http://www.medicine.org.hk/hkps/statements.php. Accessed 21 Jul 2021.
15. Authorisation of COVID-19 vaccines under the Prevention and Control of Disease (Use of Vaccines) Regulation (Cap.599K). Available from: https://www.fhb.gov.hk/en/our_work/health/rr3.html. Accessed 7 Jul 2021.

Non-locally trained doctors: the bottom line

Hong Kong Med J 2021 Jun;27(3):172–4  |  Epub 17 May 2021
© Hong Kong Academy of Medicine. CC BY-NC-ND 4.0
 
EDITORIAL
Non-locally trained doctors: the bottom line
Gilberto KK Leung, MB, BS, PhD
Department of Surgery, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong
 
Corresponding author: Prof Gilberto KK Leung (gilberto@hku.hk)
 
 Full paper in PDF
 
 
Doctor’s cross-border mobility is on the rise.1 To ensure standards, regulatory agencies adopt various criteria for granting licence to practice to non-locally trained doctors, based on, for example, the provenance of an applicant’s medical degree; the passing of a domestic licensing examination is a common but not invariable requirement.2 3
 
That a medical school’s standing may serve as a reliable proxy of its graduates’ competency and readiness for cross-border practice is a notionally simple but methodologically complex idea. Medical degree programmes, for one, are diverse in their philosophies, designs, and deliverables, whilst “excellence” may stem from teaching and/or research in various forms. Even graduates of the same school may exhibit different levels of workplace performance, depending on the individual’s aptitude, and the cultural, socio-economic and service provision environment. Recent growth in medical school number compounds the situation—as of February 2021, the World Directory of Medical Schools listed 3416 medical schools worldwide, doubling the estimated figure from two decades prior.4 5 Standards vary.6 7
 
A fair, evidence-based, and publicly accountable approach is crucial if the importation without examination of non-locally trained doctors is to achieve its intended goals by gaining political leverage and societal acceptance. Two tools are available: world university rankings and international recognition of accreditation agency.
 
World university ranking
Quacquarelli Symonds (QS),8 and Times Higher Education (THE)9 produce the most influential rankings of medical schools globally. Both rely on objective, quantitative data (eg, bibliometrics) as well as peer review by academics. The QS assessment is based on six performance indicators; THE uses 13.
 
The two systems have been criticised for methodological flaws, propensities for bias, and questionable utility.10 11 In the present context, teaching—arguably the main function of medical school—is accorded not more than 30% weighting by either system. Neither of them assesses curriculum design or pedagogy directly but instead rely on reputational survey. Learner’s outcome—the most relevant parameter for non-locally trained doctors—is not explicitly addressed by THE, and is somewhat subsumed under “employer reputation” by QS. Research performance predominates; even metrics such as faculty-to-student ratio can be more related to research than teaching capacity.
 
This is not to say that research performance and internationalisation would have no bearing on the training of future doctors at medical school: the availability of world-class experts as teachers and mentors, a strong reputation that attracts referrals and patients as training materials, and the greater opportunities for intellectual and experiential exchange can vastly enrich students’ learning experiences at top institutions. On the contrary, an institution where staff’s career progression hinges solely on bibliometrics is unlikely to incentivise good teaching. Much would depend on the organisational culture—an element perhaps too nebulous to be captured accurately, if at all, by any assessment methods.
 
Despite differences in methodology, QS and THE are usually, broadly in agreement. Based on this author’s brief analysis of their latest findings (published in 2020 for 2021), each lists 101 schools in the top 100 (there is sharing of the 100th position in both). Of the combined 202 entries, 76 schools appear under both QS and THE; 25 appear under QS only and 25 under THE only, yielding a total of 126 schools making the top 100 according to at least one of the rankings. Incongruence occurs mainly within the 51 to 100 range, where 88% of the “QS-only” or “THE-only” top 100 schools are found, and where divergence between the two systems in terms of an individual school’s ranking is more pronounced. The degree of correlation is high at the top, with nine schools ranked top-10 by both QS and THE. Note that the rankings do change, sometimes considerably, from year to year.
 
The United States, the United Kingdom, and Canada feature a high number of top 100 schools (Table). And it is probably not by coincidence that graduates from these countries (plus New Zealand and Ireland) may obtain provisional registration, examination-free, through the Competent Authority Pathway of the Australian Medical Board, and gain full registration after 12 months of supervised practice.2
 
The Singapore Medical Council offers a similar examination-free pathway to graduates from 103 foreign schools.3 Ninety-one of these were ranked top-100 by either QS or THE, and include 68 of the 76 schools found on both top 100 lists (Table). The present number of 103 is a reduction from previous, having regards to national and international rankings of universities as well as performance of conditionally registered doctors; most of the schools that have been dropped fall outside the top 100 lists.12
 
World Federation for Medical Education Recognition Programme
Accreditation of a medical school by the relevant domestic authority alone does not guarantee quality; it is necessary that the accreditation system itself operates in a robust, transparent, and norm-referenced way. To this end, the World Federation for Medical Education (WFME)—a not-for-profit non-governmental global organisation—conducts a Recognition Programme to evaluate the legal standing, accreditation process, post-accreditation monitoring, and decision-making processes of an accreditation agency. The WFME Recognition Status of an agency “confers the understanding that the quality of medical education in its accredited schools is at an appropriate and rigorous standard”. The WFME does not accredit medical schools.13
 
Presently, there are 23 agencies with Recognition Status; 15 are applying. The programme is afforded significance as suggested by the latest policy of the United States Educational Commission for Foreign Medical Graduates requiring all individuals applying for Certification to come from a medical school accredited by a WFME-recognised agency.14 Application for WFME recognition is voluntary, however, and the lack of Recognition Status says little about an agency. Indeed, nine of the 24 states or regions on the QS/THE top 100 lists (notably the United Kingdom) do not have a WFME-recognised agency, and not all schools accredited by a WFME-recognised agency are ranked highly (Table).
 

Table. Top 100 medical schools by state or region
 
In sum, state policies on examination-free entry of non-locally trained doctors, where deemed appropriate, may take a country-specific or a rankings-based approach. World university rankings are accessible and intelligible tools for gauging the quality of a medical school and its graduates’ competency but do not by themselves alone offer a fool-proof guide to a doctor’s readiness for cross-border practice; factors such as language proficiency, work experience, and higher qualifications are pertinent. The QS and THE produce fairly consistent results particularly at the top end of the spectrum although the inherent year-to-year instability would require some mitigation. The WFME Recognition Programme, concerned with national accreditation standards at large, brings nothing extra to the table. The matter, should it ever come into play anywhere, has to be part art and part science topped off with a healthy dose of courage and common sense—the bottom line being that decisions ought to be made by a professional, and not an executive, body with legally conferred power and independent status based on professional, and none other, considerations.
 
Author contributions
The author is solely responsible for the writing of this paper.
 
Conflicts of interest
The author has disclosed no conflicts of interest.
 
References
1. World Health Organization. Health Workforce. International platform on health worker mobility. Available from: https://www.who.int/hrh/migration/int-platform-hw-mobility/en/. Accessed 14 Feb 2021.
2. Medical Board of Australia. International medical graduates. Available from: https://www.medicalboard.gov. au/Registration/International-Medical-Graduates.aspx. Accessed 14 Feb 2021.
3. Singapore Medical Council. International medical graduates. Available from: https://www.healthprofessionals.gov.sg/smc/becoming-a-registereddoctor/register-of-medical-practitioners/international-medical-graduates. Accessed 10 Feb 2021.
4. World Directory of Medical Schools. Available from: https://www.wdoms.org. Accessed 13 Feb 2021.
5. Eckhert NL. The global pipeline: too narrow, too wide or just right? Med Educ 2002;36:606-13. Crossref
6. van Zanten M, Norcini JJ, Boulet JR, Simon F. Overview of accreditation of undergraduate medical education programmes worldwide. Med Educ 2008:42:930-7. Crossref
7. Duvivier RJ, Boulet JR, Opalek A, van Zanten M, Norcini J. Overview of the world’s medical schools: an update. Med Educ 2014:48:860-9. Crossref
8. QS World University Rankings—methodology. Available from: https://www.topuniversities.com/qs-world-university-rankings/methodology. Accessed 14 Feb 2021.
9. Times Higher Education. The World University Rankings 2021: methodology. Available from: https://www.timeshighereducation.com/world-university-rankings/world-university-rankings-2021-methodology. Accessed 14 Feb 2021.
10. Ioannidis JP, Patsopoulos NA, Kavvoura1 FK, et al. International ranking systems for universities and institutions: a critical appraisal. BMC Med 2007;5:30. Crossref
11. Soh K. What the overall doesn’t tell about world university rankings: examples from ARWU, QSWUR, and THEWUR in 2013. J Higher Educ Policy Manage 2015;37:295-307. Crossref
12. UniGlobal Education. 57 universities to be removed from the list of Singapore Medical Council (SMC) approved overseas medical schools. Available from: https://uniglobal.sg/2019/04/18/57-universities-to-be-removed-from-the-list-of-singapore-medical-council-smc-approved-overseas-medical-schools/. Accessed 17 Feb 2021.
13. World Federation for Medical Education. WFME recognition programme. Available from: https://wfme.org/accreditation/recognition-programme/. Accessed 16 Feb 2021.
14. Shiffer CD, Boulet JR, Cover LL, Pinsky WW. Advancing the quality of medical education worldwide: ECFMG’s 2023 medical school accreditation requirement. J Med Regul 2019;105:8-16. Crossref

Impacts of the COVID-19 pandemic on the physical and mental health of children

Hong Kong Med J 2021 Jun;27(3):175–6  |  Epub 7 Jun 2021
© Hong Kong Academy of Medicine. CC BY-NC-ND 4.0
 
EDITORIAL
Impacts of the COVID-19 pandemic on the physical and mental health of children
Winnie WY Tse, FHKAM (Paediatrics)1; Mike YW Kwan, FHKAM (Paediatrics)2
1 President, Hong Kong College of Paediatricians, Hong Kong
2 Consultant, Paediatric Infectious Diseases Unit, Department of Paediatrics and Adolescent Medicine, Hospital Authority Infectious Diseases Centre, Princess Margaret Hospital, Hong Kong
 
Corresponding author: Dr Winnie WY Tse (president@paediatrician.org.hk)
 
 Full paper in PDF
 
 
The total number of new cases of coronavirus disease 2019 (COVID-19) is decreasing in Hong Kong, but two recent paediatric cases have attracted immense public attention—a 4-month-old baby who contracted the viral infection from his family and a 4-year-old boy who was likely infected in the community several months before, possibly concurrently with roseola infantum, and tested positive despite the long interval between infection and testing.
 
Since the outbreak of COVID-19 in Hong Kong in January 2020, there has been a great deal of research by local paediatricians on the clinical manifestations1 2 3 and scientific findings4 5 of the paediatric cases, including comparative studies with paediatric cases in South Korea,6 Wuhan,6 7 8 and other regions of mainland China,6 7 8 and with those of children infected with severe acute respiratory syndrome in 2003.9 Collaborations with local and overseas researchers have also contributed to a deeper understanding of COVID-19.10 11 12 13
 
The overt effects of COVID-19 on children are known: severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection generally causes mild illness in children and adolescents, with 99.2% of paediatric patients with COVID-19 experiencing mild symptoms8 and 26% to 38% asymptomatic.3 8 However, serious complications have occurred in children in Hong Kong, such as PIMS-TS (paediatric inflammatory multisystem syndrome temporally associated with SARS-CoV-2), post-COVID-19 autoimmune haemolytic anaemia, and COVID toes.8 These patients required lengthy hospital management including intensive care and prolonged follow-up after recovery.
 
In order to protect vulnerable individuals in Hong Kong, such as children and older and/or chronically ill adults, social distancing measures to mitigate the spread of infection have been enforced. Intermittently, schools have been closed and were fully open for <3 months in the entire year of 2020, and school closures have continued into 2021. Schools are fundamental to child and adolescent development and wellbeing, providing academic instruction, social and emotional skills, safety, reliable nutrition, physical/speech and mental health therapy, and opportunities for physical activity, among other benefits. Schools also play a critical role in addressing racial and social inequity.14 In the past 15 months of school suspensions, online teaching has played a central role in ensuring academic provisions but other aspects of development and wellbeing have been compromised.
 
In addition to providing a learning environment, schools serve to satisfy students’ non-academic needs and school closures have serious consequences on the physical and mental wellbeing of students.15 Internationally, studies have found that obesity16 and myopia17 among school-age children have increased because of longer screen times, lack of physical activities, and the small living and learning spaces at home. These indirect consequences can affect all children, but some are disproportionately more likely to be affected, such as those with special educational needs or those who are financially deprived. Tso et al18 conducted a large-scale cross-sectional population online survey of 29 202 Hong Kong families with children aged 2 to 12 years. The authors found that, amid the COVID-19 outbreak and the resulting related school closures and disease containment measures in Hong Kong, the risk of child psychosocial problems was higher in children with special educational needs, and/or acute or chronic disease, mothers with mental illness, single-parent families, and low-income families. Delayed bedtime, inadequate sleep, inadequate exercise, and extended use of electronic devices were associated with significantly higher levels of stress among parents and more psychosocial problems among pre-school children. These indirect impacts of COVID-19 could potentially create a social crisis because school closures are likely to widen the learning gap between children from lower-income and those from higher-income families.19
 
In Hong Kong, Chua et al3 found that household transmission was the main source of infection for children and youths, and the risk of being infected at school was small. On 10 May 2021, the Hong Kong College of Paediatricians, The Hong Kong Paediatric Society, and the Hong Kong Society for Paediatric Immunology, Allergy and Infectious Diseases jointly issued an appeal to adult household members and carers (aged ≥16 years) to receive the COVID-19 vaccine for the benefit of the younger generation.20
 
However, this is only the first step in the appeal from paediatricians. The ultimate goal is to boost the overall immunisation rate in the community and to restore societal normalcy. On 24 May 2021, whole-school half-day face-to-face classes resumed for all school grades in Hong Kong. However, students were still not permitted to interact with peers at lunch, enjoy many of the non-core subjects that have to be missed due to shortened class time, nor socialise outside of “class bubbles”.
 
The United States, Canada, Singapore, and Israel have approved COVID-19 vaccination for those aged 12 to 15 years. This is a welcome development in the efforts to protect the population from COVID-19, and we look forward to newer scientific evidence for vaccine safety and efficacy in even younger children.
 
The take-home message remains: community-wide immunisation is safe and effective—and much more desirable than closures of educational and leisure facilities—for protecting the physical health and long-term psychosocial and emotional development of children, and for reducing social inequity.
 
Author contributions
All authors contributed to the editorial, approved the final version for publication, and take responsibility for its accuracy and integrity.
 
Conflicts of interest
All authors have disclosed no conflicts of interest.
 
References
1. Mak PQ, Chung KS, Wong JS, Shek CC, Kwan MY. Anosmia and ageusia: not an uncommon presentation of COVID-19 infection in children and adolescents. Pediatr Infect Dis J 2020;39:e199-200. Crossref
2. Duque JS, Mak PQ, Wong JS, et al. Discharging coronavirus disease 2019 (COVID-19) patients with faecal viral shedding and prolonged hospitalisation. J Hosp Adm 2020;9:26-30. Crossref
3. Chua GT, Wong JS, Lam I, et al. Clinical characteristics and transmission of COVID-19 in children and youths during 3 waves of outbreaks in Hong Kong. JAMA Netw Open 2021;4:e218824. Crossref
4. To KK, Chua GT, Kwok KL, et al. False-positive SARSCoV- 2 serology in 3 children with Kawasaki disease. Diagn Microbiol Infect Dis 2020;98:115141. Crossref
5. Chua GT, Wong JS, To KK, et al. Saliva viral load better correlates with clinical and immunological profiles in children with coronavirus disease 2019. Emerg Microbes Infect 2021;10:235-41. Crossref
6. Chua GT, Xiong X, Choi EH, et al. COVID-19 in children across three Asian cosmopolitan regions. Emerg Microbes Infect 2020;9:2588-96. Crossref
7. Xiong XL, Wong KK, Chi SQ, et al. Comparative study of the clinical characteristics and epidemiological trend of 244 COVID-19 infected children with or without GI symptoms. Gut 2021;70:436-8. Crossref
8. Xiong XL, Chua GT, Chi SQ, et al. Haematological and immunological data of Chinese children infected with coronavirus disease 2019. Data Brief 2020;31:105953. Crossref
9. Xiong X, Chua GT, Chi S, et al. A comparison between Chinese children infected with coronavirus disease-2019 and with severe acute respiratory syndrome 2003. J Pediatr 2020;224:30-6. Crossref
10. Cowling BJ, Ali ST, Ng TW, et al. Impact assessment of non-pharmaceutical interventions against coronavirus disease 2019 and influenza in Hong Kong: an observational study. Lancet Public Health 2020;5:e279-88. Crossref
11. Zhang Q, Bastard P, Liu Z, et al. Inborn errors of type I IFN immunity in patients with life-threatening COVID-19. Science 2020;370:eabd4570.
12. Bastard P, Rosen LB, Zhang Q, et al. Autoantibodies against type I IFNs in patients with life-threatening COVID-19. Science 2020;370:eabd4585.
13. Sancho-Shimizu V, Brodin P, Cobat A, et al. SARS-CoV-2-related MIS-C: A key to the viral and genetic causes of Kawasaki disease? J Exp Med 2021;218:e20210446.
14. American Academy of Pediatrics. COVID-19 guidance for safe schools. Available from: https://services.aap.org/en/pages/2019-novel-coronavirus-covid-19-infections/clinical-guidance/covid-19-planning-considerations-return-to-in-person-education-in-schools/. Accessed 28 May 2021.
15. Hoffman JA, Miller EA. Addressing the consequences of school closure due to COVID-19 on children’s physical and mental well-being. World Med Health Policy 2020;12:300-10. Crossref
16. Jenssen BP, Kelly MK, Powell M, Bouchelle Z, Mayne SL, Fiks AG. COVID-19 and changes in child obesity. Pediatrics 2021;147:e2021050123. Crossref
17. Wang J, Li Y, Musch DC, et al. Progression of myopia in school-aged children after COVID-19 home confinement. JAMA Ophthalmol 2021;139:293-300. Crossref
18. Tso WW, Wong RS, Tung KT, et al. Vulnerability and resilience in children during the COVID-19 pandemic. Eur Child Adolesc Psychiatry 2020 Nov 17. Available from: https://doi.org/10.1007/s00787-020-01680-8. Accessed 28 May 2021. Crossref
19. van Lancker W, Parolin Z. COVID-19, school closures, and child poverty: a social crisis in the making. Lancet Public Health 2020;5:e243-4. Crossref
20. Hong Kong College of Paediatricians. Appealing to adults to receive COVID-19 vaccination for the psychosocial and physical health of our children (updated 10th May 2021). Hong Kong College of Paediatricians. Available from: https://www.paediatrician.org.hk/index.php?option=com_content&view=article&id=427&catid=2&Itemid=26. Accessed 28 May 2021.

Looking beyond COVID-19 as a pandemic

Hong Kong Med J 2021 Apr;27(2):88–9  |  Epub 12 Apr 2021
© Hong Kong Academy of Medicine. CC BY-NC-ND 4.0
 
EDITORIAL
Looking beyond COVID-19 as a pandemic
YL Lau, MD (Hon)
Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong
 
Corresponding author: Prof YL Lau (lauylung@hku.hk)
 
 Full paper in PDF
 
By early April 2021, coronavirus disease 2019 (COVID-19) pandemic had resulted in over 132 million cases with an overall case fatality rate of 2.2% globally.1 The infection fatality rate is lower, perhaps as low as 0.2%.2 However, although the infection fatality rate is near zero for those aged <40 years, it increases rapidly for people aged >60 years to reach over 25% at the extreme end of old age.3 A population-based seroprevalence study in Wuhan, China, suggested that >80% of antibody-positive individuals were asymptomatic.4 In Hong Kong, >25% of reported COVID-19 cases have been asymptomatic; among children and young adults the proportion is even higher at >40% (personal communication, Centre for Health Protection).
 
Considering the low infection fatality rates, some countries opted initially for acquiring herd immunity through natural infection; however that has led to high numbers of cases and deaths, potentially resulting in healthcare system collapse.5 At present, universal whole-population vaccination is considered the only viable option to move the world out of the current pandemic, with non-pharmaceutical interventions being deployed as a stop-gap measure to contain the scale of the pandemic until effective herd immunity is achieved through vaccination.6 The socio-economic cost of some non-pharmaceutical interventions is extremely high, resulting in damage to the economy, increasing unemployment rates, and other collateral morbidities, such as depression and delayed diagnosis of severe diseases leading to poorer prognosis. Many other indirect impacts on health, especially in children and older adults, are still to be delineated. Therefore, the speed to achieve herd immunity regionally and globally will become a critical factor to minimise the direct and indirect harms caused by the COVID-19 pandemic.
 
Because of this, enormous collaborative efforts have gone into developing COVID-19 vaccines at unprecedented speeds.7 The usual regulatory pathways have been compressed to allow emergency use of such vaccines despite the availability of only preliminary data from the first 3 to 4 months of phase 3 studies. This has been justified using the argument that the benefits of using these novel vaccines far outweigh the potential harms.
 
There has been unprecedented international collaboration among scientists, doctors, and pharmaceutical companies to produce candidate vaccines, including mRNA, adenoviral vector, and inactivated whole virus vaccines, and to trial those candidates, with some successfully approved by different national regulatory authorities for emergency use. In contrast, subsequent steps to implement universal vaccination has exposed frailties in human societies even in a pandemic, such as rivalry among vaccine producers, distribution logistics of vaccines among nations, and vaccine inequity between the rich and poor nations. These issues have been compounded by mistrust between citizens and governments, fuelling vaccine hesitancy. In reality, the pandemic will not end if only a handful of rich and capable nations achieve herd immunity. So what are the future scenarios for this divided world and humanity? Let us look at ourselves first.
 
In Hong Kong, with a densely packed population that is highly connected, both physically and electronically, adequate vaccine supply for the whole population has been secured. Therefore, we should be in an enviable position among the first few regions to reach herd immunity. Instead, we remain far from this goal because of vaccine hesitancy, internal conflict, and mistrust. There is no easy solution except to insist on basic principles such as voluntary vaccination, freedom to choose a preferred vaccine, transparency, and effective communication of all matters related to vaccines and the vaccination programme, including adverse events following immunisation, in order to dispel misinformation. Moreover, our own healthcare professionals who hold the primary responsibility to care for the health of our citizens should be empowered to educate the public regarding the reality and purpose of the vaccination rollout. These healthcare professionals should have the confidence to explain and counsel citizens to exercise a rational choice. Everyone should understand the post hoc ergo propter hoc fallacy; in this context, an adverse event following vaccination is not necessarily caused by the vaccination. Nevertheless, a vigorous pharmacovigilance risk assessment system has to be in place to detect signal of adverse events that could be causally linked with these novel vaccines, such as the rare complication of embolic and thrombotic events in young population with the AstraZeneca ChAdOx1-S recombinant COVID-19 vaccine.8
 
To be tolerant of choosing which vaccine to use will lead to balance and healing of our divided society. Diversity of choice among different types of vaccines is preferred to having only one type available, because there are many unknowns, including the long-term performance of each vaccine. The long-term vaccination strategy is far from being fixed, as new knowledge is being accrued daily. Maintaining diversity will allow room to adapt to this uncertainty.
 
Lastly, it is now becoming clear that COVID-19 will likely stay with us as an endemic disease and cannot be eradicated globally or eliminated regionally at national levels, because of suboptimal vaccine uptake, emergence of spike variants that escape immunity, and the limited duration of sterilising humoral immunity after either natural infection or vaccination.9 10 11 12 In contrast, memory T cell immunity could be long-lasting and reduce disease severity when reinfection occurs.12 Therefore the goal of the vaccination programme is not to interrupt all infections, which would be unrealistic, but rather to prevent severe COVID-19. With the attainment of herd immunity through vaccination, primary COVID-19 will then likely occur during the first 5 years of life, with mild symptoms; partially transmissible reinfection may occur throughout life to boost immune memory, as in the other four common human coronaviruses.3 This will render COVID-19 as a common cold rather than a severe disease. This is the preferred and most likely future scenario, rather than global eradication, which is unrealistic and would demand repeated annual vaccinations.
 
Author contributions
The author contributed to the editorial, approved the final version for publication, and takes responsibility for its accuracy and integrity.
 
Disclosures
YL Lau is a member of the Advisory Panel on COVID-19 Vaccines; and the chairman of the Scientific Committee on Vaccine Preventable Diseases for the Hong Kong SAR Government.
 
References
1. Our World in Data. Available from: https://ourworldindata.org. Accessed 8 Apr 2021.
2. Randolph HE, Barreiro LB. Herd immunity: understanding COVID-19. Immunity 2020;52:737-41. Crossref
3. Lavine JS, Bjornstad ON, Antia R. Immunological characteristics govern the transition of COVID-19 to endemicity. Science 2021;371:741-5. Crossref
4. He Z, Ren L, Yang J, et al. Seroprevalence and humoral immune durability of anti-SARS-CoV-2 antibodies in Wuhan, China: a longitudinal, population-level, cross-sectional study. Lancet 2021;397:1075-84. Crossref
5. Sridhar D, Gurdasani D. Herd immunity by infection is not an option. Science 2021;371:230-1. Crossref
6. Baker MG, Wilson N, Blakely T. Elimination could be the optimal response strategy for covid-19 and other emerging pandemic diseases. BMJ 2020;371:m4907. Crossref
7. Jeyanathan M, Afkhami S, Smaill F, Miller MS, Lichty BD, Xing Z. Immunological considerations for COVID-19 vaccine strategies. Nat Rev Immunol 2020;20:615-32. Crossref
8. European Medicines Agency Pharmacovigilance Risk Assessment Committee. Signal assessment report on embolic and thrombotic events (SMQ) with COVID-19 Vaccine (ChAdOx1-S [recombinant])—COVID-19 Vaccine AstraZeneca (other viral vaccines). EPITT no: 19683. 24 March 2021. Available from: https://www.ema.europa.eu/en/documents/prac-recommendation/signal-assessment-report-embolic-thrombotic-events-smq-covid-19-vaccine-chadox1-s-recombinant-covid_en.pdf. Accessed 8 Apr 2021.
9. Seow J, Graham C, Merrick B, et al. Longitudinal observation and decline of neutralizing antibody responses in the three months following SARS-CoV-2 infection in humans. Nat Microbiol 2020;5:1598-607. Crossref
10. Chia WN, Zhu F, Ong SW, et al. Dynamics of SARS-CoV-2 neutralising antibody responses and duration of immunity: a longitudinal study. Lancet Microbe 2021 Mar 23. Epub ahead of print. Crossref
11. Dan JM, Mateus J, Kato Y, et al. Immunological memory to SARS-CoV-2 assessed for up to 8 months after infection. Science 2021;371:eabf4063. Crossref
12. Bonifacius A, Tischer-Zimmermann S, Dragon AC, et al. COVID-19 immune signatures reveal stable antiviral T cell function despite declining humoral responses. Immunity 2021;54:340-54.e6. Crossref

Living well with kidney disease by patient and care partner empowerment: kidney health for everyone everywhere

© Hong Kong Academy of Medicine. CC BY-NC-ND 4.0
 
EDITORIAL
Living well with kidney disease by patient and care partner empowerment: kidney health for everyone everywhere
Kamyar Kalantar-Zadeh, MD, PhD1 #; Philip KT Li, MD2 #; Ekamol Tantisattamo, MD, MPH3; Latha Kumaraswami, BA4 #; Vassilios Liakopoulos, MD, PhD5 #; SF Lui, MD6 #; Ifeoma Ulasi, MD7 #; Sharon Andreoli, MD8 #; Alessandro Balducci, MD9 #; Sophie Dupuis, MA10 #; Tess Harris, MA11; Anne Hradsky, MA10; Richard Knight, MBA12; Sajay Kumar, BCom4; Maggie Ng13; Alice Poidevin, MA10; Gamal Saadi, MD14 #; Allison Tong, PhD15
1 The International Federation of Kidney Foundation–World Kidney Alliance (IFKF-WKA), Division of Nephrology and Hypertension and Kidney Transplantation, University of California Irvine, Orange, California, United States
2 Department of Medicine and Therapeutics, Carol & Richard Yu PD Research Centre, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
3 Division of Nephrology, Hypertension and Kidney Transplantation, Department of Medicine, University of California Irvine School of Medicine, Orange, California, United States
4 Tanker Foundation, Chennai, India
5 Division of Nephrology and Hypertension, 1st Department of Internal Medicine, AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
6 Hong Kong Kidney Foundation and the International Federation of Kidney Foundations–World Kidney Alliance, The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong
7 Renal Unit, Department of Medicine, College of Medicine, University of Nigeria, Ituku-Ozalla, Enugu, Nigeria
8 James Whitcomb Riley Hospital for Children, Indiana University School of Medicine, Indianapolis, Indiana, United States
9 Italian Kidney Foundation, Rome, Italy
10 World Kidney Day Office, Brussels, Belgium
11 Polycystic Kidney Disease Charity, London, United Kingdom
12 American Association of Kidney Patients, Tampa, Florida, United States
13 Hong Kong Kidney Foundation, Hong Kong
14 Nephrology Unit, Department of Internal Medicine, Faculty of Medicine, Cairo University, Giza, Egypt
15 Sydney School of Public Health, The University of Sydney, Sydney, New South Wales, Australia
# Members of the World Kidney Day Steering Committee
 
Corresponding author:Dr Kamyar Kalantar-Zadeh; Dr Philip KT Li (kkz@uci.edu; philipli@cuhk.edu.hk)
 
 Full paper in PDF
 
Living with chronic kidney disease (CKD) is associated with hardships for patients and their care partners. Empowering patients and their care partners, including family members or friends involved in their care, may help minimise the burden and consequences of CKD-related symptoms to enable life participation. There is a need to broaden the focus on living well with kidney disease and re-engagement in life, including an emphasis on patients being in control. The World Kidney Day (WKD) Joint Steering Committee has declared 2021 the year of ‘Living Well with Kidney Disease’ in an effort to increase education and awareness on the important goal of patient empowerment and life participation. This calls for the development and implementation of validated patient-reported outcome measures to assess and address areas of life participation in routine care. It could be supported by regulatory agencies as a metric for quality care or to support labelling claims for medicines and devices. Funding agencies could establish targeted calls for research that address the priorities of patients. Patients with kidney disease and their care partners should feel supported to live well through concerted efforts by kidney care communities including during pandemics. In the overall wellness programme for kidney disease patients, the need for prevention should be reiterated. Early detection with a prolonged course of wellness despite kidney disease, after effective secondary and tertiary prevention programmes, should be promoted. World Kidney Day 2021 continues to call for increased awareness of the importance of preventive measures throughout populations, professionals, and policy makers, applicable to both developed and developing countries.
 
Patient priorities for living well: a focus on life participation
Chronic kidney disease, its associated symptoms, and its treatment, including medications, dietary and fluid restrictions, and kidney replacement therapy can disrupt and constrain daily living, and impair the overall quality of life of patients and their family members. Consequently, this can also impact treatment satisfaction and clinical outcomes.1 Despite this, the past several decades have seen limited improvement in the quality of life of people with CKD.1 To advance research, practice, and policy, there is increasing recognition of the need to identify and address patient priorities, values, and goals.1
 
Several regional and global kidney health projects have addressed these important questions including the Standardised Outcomes in Nephrology with more than 9000 patients, family members, and healthcare professionals from over 70 countries.2 3 Across all treatment stages, including CKD, dialysis and transplantation, Standardised Outcomes in Nephrology participating children and adults with CKD consistently gave higher priority to symptoms and life impacts than healthcare professionals.2 3 In comparison, healthcare professionals gave higher priority to mortality and hospitalisation than patients and family members. The patient-prioritised outcomes are shown in the Figure. Irrespective of the type of kidney disease or treatment stage, patients wanted to be able to live well, maintain their role and social functioning, protect some semblance of normality, and have a sense of control over their health and well-being.
 

Figure. Conceptual framework of ‘Living Well with Kidney Disease’ based on patient centeredness and empowering patient with focus on effective symptom management and life participation
 
Life participation, defined as the ability to do meaningful activities of life including, but not limited to, work, study, family responsibilities, travel, sport, social, and recreational activities, was established a critically important outcome across all treatment stages of CKD.1 2 The quotations from patients with kidney disease provided in the Box demonstrates how life participation reflects the ability to live well with CKD.4 According to the World Health Organization (WHO), participation refers to “involvement in a life situation.”5 This concept is more specific than the broader construct of quality of life. Life participation places the life priorities and values of those affected by CKD and their family at the centre of decision making. The World Kidney Day Steering Committee calls for the inclusion of life participation, a key focus in the care of patients with CKD, to achieve the ultimate goal of living well with kidney disease. This calls for the development and implementation of validated patient-reported outcome measures, that could be used to assess and address areas of life participation in routine care. Monitoring of life participation could be supported by regulatory agencies as a metric for quality care or to support labelling claims for medicines and devices. Funding agencies could establish targeted calls for research that address the priorities of patients, including life participation.
 

Box. Quotations from patients with chronic kidney disease related to priorities for living well
 
Patient empowerment, partnership, and a paradigm shift towards a strengths-based approach to care
Patients with CKD and their family members including care partners should be empowered to achieve the health outcomes and life goals that are meaningful and important to them. The WHO defines patient empowerment as “a process through which people gain greater control over decisions or actions affecting their health,”6 which requires patients to understand their role, to have knowledge to be able to engage with clinicians in shared decision making, skills, and support for self-management. For patients receiving dialysis, understanding the rationale for a lifestyle change, having access to practical assistance and family support promoted patient empowerment, while feeling limited in life participation undermined their sense of empowerment.7
 
The World Kidney Day Steering Committee advocates for strengthened partnership with patients in the development, implementation, and evaluation of interventions for practice and policy settings, that enable patients to live well with kidney diseases. This needs to be supported by consistent, accessible, and meaningful communication. Meaningful involvement of patients and family members across the entire research process, from priority setting and planning the study through to dissemination and implementation, is now widely advocated.8 There have also been efforts, such as the Kidney Health Initiative, to involve patients in the development of drugs and devices to foster innovation.9
 
We urge for greater emphasis on a strengths-based approach as outlined in the Table, which encompasses strategies to support patient resilience, harness social connections, build patient awareness and knowledge, facilitate access to support, and establish confidence and control in self-management. The strengths-based approach is in contrast to the medical model where chronic disease is traditionally focussed on pathology, problems, and failures.10 Instead, the strengths-based approach acknowledges that each individual has strengths and abilities to overcome the problems and challenges faced, and requires collaboration and cultivation of the patient’s hopes, aspirations, interests, and values. Efforts are needed to ensure that structural biases, discrimination, and disparities in the healthcare system also need to be identified, so all patients are given the opportunity to have a voice.
 

Table. Suggested strategies for ‘living well with chronic kidney disease’ using a strengths-based approach
 
The role of care partner
A care partner is often an informal caregiver who is also a family member of the patient with CKD.11 They may take on a wide range of responsibilities including coordinating care (including transportation to appointments), administration of treatment including medications, home dialysis assistance, and supporting dietary management. Caregivers of patients with CKD have reported depression, fatigue, isolation, and also burnout. The role of the care partner has increasingly become more important in CKD care given the heightened complexity in communicative and therapeutic options including the expansion of telemedicine under the coronavirus disease 2019 (COVID-19) pandemic and given the goal to achieve higher life expectancy with CKD.12 The experience of caring for a partially incapacitated family member with progressive CKD can represent a substantial burden on the care partner and may impact family dynamics. Not infrequently, the career goals and other occupational and leisure aspects of the life of the care partner are affected because of CKD care partnership, leading to care partner overload and burnout. Hence, the above-mentioned principles of life participation need to equally apply to care partners as well as all family members and friends involved in CKD care.
 
Living with kidney disease in low-income regions
In low and lower-middle-income countries including in sub-Saharan Africa, Southeast Asia, and Latin America, patient’s ability to self-manage or cope with the chronic disease vary but may often be influenced by internal factors including spirituality, belief system, and religiosity, and external factors including appropriate knowledge of the disease, poverty, family support system, and one’s grit and social relations network. The support system comprising healthcare providers and caregivers plays a crucial role as most patients rely on them in making decisions, and for the necessary adjustments in their health behaviour.13 In low-income regions, where there are often a relatively low number of physicians and even lower number of kidney care providers per population especially in rural areas, a stepwise approach can involve local and national stakeholders including both non-governmental organisations and government agencies by (1) extending kidney patient education in rural areas; (2) adapting telehealth technologies if feasible to educate patients and train local community kidney care providers, and (3) implementing effective retention strategies for rural kidney health providers including adapting career plans and competitive incentives.
 
Many patients in low-resource settings present in very late stage needing to commence emergency dialysis.14 The very few fortunate ones to receive kidney transplantation may acquire an indescribable chance to normal life again, notwithstanding the high costs of immunosuppressive medications in some countries. For some patients and care partners in low-income regions, spirituality and religiosity may engender hope, when ill they are energised by the anticipation of restored health and spiritual wellbeing. For many patients, informing them of a diagnosis of kidney disease is a harrowing experience both for the patient (and caregivers) and the healthcare professional. Most patients present to kidney physicians (usually known as “renal physicians” in many of these countries) with trepidations and apprehension. It is rewarding therefore to see the patient’s anxiety dissipate after reassuring him or her of a diagnosis of simple kidney cysts, urinary tract infection, simple kidney stones, solitary kidneys, etc, that would not require extreme measures like kidney replacement therapy. Patients diagnosed with glomerulonephritis who have an appropriate characterisation of their disease from kidney biopsies and histology; who receive appropriate therapies and achieve remission are relieved and are very grateful. Patients are glad to discontinue dialysis following resolution of acute kidney injury or acute-on-chronic kidney disease.
 
Many patients with CKD who have residual kidney function appreciate being maintained in a relatively healthy state with conservative measures, without dialysis. They experience renewed energy when their anaemia is promptly corrected using erythropoiesis-stimulating agents. They are happy when their peripheral oedema resolves with treatment. For those on maintenance haemodialysis who had woeful stories from emergency femoral cannulations, they appreciate the construction of good temporary or permanent vascular accesses. Many patients in low-resource settings present in very late stage needing to commence emergency dialysis. Patients remain grateful for waking from a uraemic coma or recovering from recurrent seizures when they commence dialysis.
 
World kidney day 2021 advocacy
World Kidney Day 2021 theme on ‘Living Well with Kidney Disease’ is deliberately chosen to have the goals to redirect more focus on plans and actions towards achieving patient-centred wellness. “Kidney Health for Everyone, Everywhere” with emphasis on patient-centred wellness should be a policy imperative that can be successfully achieved if policy makers, nephrologists, healthcare professionals, patients, and care partners place this within the context of comprehensive care. The requirement of patient engagement is needed. The WHO in 2016 put out an important document on patient empowerment15:
 
“Patient engagement is increasingly recognised as an integral part of healthcare and a critical component of safe people-centred services. Engaged patients are better able to make informed decisions about their care options. In addition, resources may be better used if they are aligned with patients’ priorities and this is critical for the sustainability of health systems worldwide. Patient engagement may also promote mutual accountability and understanding between patients and healthcare providers. Informed patients are more likely to feel confident to report both positive and negative experiences and have increased concordance with mutually agreed care management plans. This not only improves health outcomes but also advances learning and improvement while reducing adverse events.”
 
In the International Society of Nephrology Community Film Event at World Congress of Nephrology 2020, it is good to see a quote in the film from patients:
 
“Tell me. I will forget; Show me. I will remember; Involve me. I will understand.”
 
The International Society of Nephrology Global Kidney Policy Forum 2019 included a patient speaker Nicki Scholes-Robertson from New Zealand:
 
“Culturally appropriate and sensitive patient information and care are being undertaken in New Zealand to fight inequities in kidney health, especially in Maori and other disadvantaged communities.”
 
World Kidney Day 2021 would like to promote to the policy makers on increasing focus and resources on both drug and non-drug programmes in improving patient wellness. Examples include funding for erythropoiesis-stimulating agents and antipruritic agents for managing anaemia and itchiness, respectively, just name but a few.16 17 Home dialysis therapies have been consistently found to improve patient autonomy and flexibility, quality of life in a cost-effective manner, enhancing life participation. Promoting home dialysis therapies should tie in with appropriate ‘assisted dialysis’ programmes to reduce patient and care partner fatigue and burnout. Also, examples like self-management programmes, cognitive behavioural therapy, and group therapies for managing depression, anxiety, and insomnia should be promoted before resorting to medications.18 The principle of equity recognises that different people with different levels of disadvantage require different approaches and resources to achieve equitable health outcomes. The kidney community should push for adapted care guidelines for vulnerable and disadvantaged populations. The involvement of primary care and general physicians especially in low and lower-middle-income countries would be useful in improving the affordability and access to services through the public sector in helping the symptom management of patients with CKD and improve their wellness. In the overall wellness programme for kidney disease patients, the need for prevention should be reiterated. Early detection with a prolonged course of wellness despite kidney disease, after an effective secondary prevention programme, should be promoted.19 Prevention of CKD progression can be attempted by lifestyle and diet modifications such as a plant-dominant low-protein diet and by means of effective pharmacotherapy including administration of sodium-glucose transport protein 2 inhibitors.20 World Kidney Day 2021 continues to call for increased awareness of the importance of preventive measures throughout populations, professionals, and policy makers, applicable to both developed and developing countries.19
 
Conclusions
Effective strategies to empower patients and their care partners strive to pursue the overarching goal of minimising the burden of CKD-related symptoms in order to enhance patient satisfaction, health-related quality of life, and life participation. World Kidney Day 2021 theme on ‘Living Well with Kidney Disease’ is deliberately chosen to have the goals to redirect more focus on plans and actions towards achieving patient-centred wellness. Notwithstanding the COVID-19 pandemic that had overshadowed many activities in 2020 and beyond, the World Kidney Day Steering Committee has declared 2021 the year of ‘Living well with Kidney Disease’ in an effort to increase education and awareness on the important goal of effective symptom management and patient empowerment. Whereas the World Kidney Day continues to emphasise the importance of effective measures to prevent kidney disease and its progression,18 patients with pre-existing kidney disease and their care partners should feel supported to live well through concerted efforts by kidney care communities and other stakeholders throughout the world even during a world-shattering pandemic as COVID-19 that may drain many resources.21 Living well with kidney disease is an uncompromisable goal of all kidney foundations, patient groups, and professional societies alike, to which the International Society of Nephrology and the International Federation of Kidney Foundation World Kidney Alliance are committed at all times.
 
Author contributions
K Kalantar-Zadeh reports honoraria from Abbott, AbbVie, ACI Clinical, Akebia, Alexion, Amgen, Ardelyx, Astra-Zeneca, Aveo, BBraun, Cara Therapeutics, Chugai, Cytokinetics, Daiichi, DaVita, Fresenius, Genentech, Haymarket Media, Hospira, Kabi, Keryx, Kissei, Novartis, Pfizer, Regulus, Relypsa, Resverlogix, Dr Schaer, Sandoz, Sanofi, Shire, Vifor, UpToDate, and ZS-Pharma. PKT Li reports personal fees from Fibrogen and Astra-Zeneca. G Saadi reports personal fees from Multicare, Novartis, Sandoz, and Astra-Zeneca. V Liakopoulos reports non-financial support from Genesis Pharma. All other authors have disclosed no conflicts of interest.
 
Funding/support
This editorial received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.
 
Declaration
This article was published in Kidney International, volume 99, pages 278-284, Copyright World Kidney Day Steering Committee (2021), and reprinted concurrently in several journals. The articles cover identical concepts and wording, but vary in minor stylistic and spelling changes, detail, and length of manuscript in keeping with each journal’s style. Any of these versions may be used in citing this article.
 
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2. Carter SA, Gutman T, Logeman C, et al. Identifying outcomes important to patients with glomerular disease and their caregivers. Clin J Am Soc Nephrol 2020;15:673-84. Crossref
3. Hanson CS, Craig JC, Logeman C, et al. Establishing core outcome domains in pediatric kidney disease: report of the Standardized Outcomes in Nephrology-Children and Adolescents (SONG-KIDS) consensus workshops. Kidney Int 2020;98:553-65. Crossref
4. González AM, Gutman T, Lopez-Vargas P, et al. Patient and caregiver priorities for outcomes in CKD: a multinational nominal group technique study. Am J Kid Dis 2020;76:679-89. Crossref
5. World Health Organization, The International Classification of Functioning, Disability and Health. Towards a common language for functioning, disability and health. 2002. Available from: https://www.who.int/classifications/icf/icfbeginnersguide.pdf. Accessed 11 Apr 2021.
6. World Health Organization. Health Promotion Glossary. 1998. Available from: https://www.who.int/publications/i/item/WHO-HPR-HEP-98.1. Accessed 11 Apr 2021.
7. Baumgart A, Manera KE, Johnson DW, et al. Meaning of empowerment in peritoneal dialysis: focus groups with patients and caregivers. Nephrol Dial Transplant 2020;35:1949-58. Crossref
8. PCORI. The Value of Engagement. Available from: https:// www.pcori.org/about-us/our-programs/engagement/public-and-patient-engagement/value-engagement. 2018. Accessed 1 Sep 2020.
9. Bonventre JV, Hurst FP, West M, Wu I, Roy-Chaudhury P, Sheldon M. A technology roadmap for innovative approaches to kidney replacement therapies: a catalyst for change. Clin J Am Soc Nephrol 2019;14:1539-47. Crossref
10. Ibrahim N, Michail M, Callaghan P. The strengths based approach as a service delivery model for severe mental illness: a meta-analysis of clinical trials. BMC Psychiatry 2014;14:243. Crossref
11. Parham R, Jacyna N, Hothi D, Marks SD, Holttum S, Camic P. Development of a measure of caregiver burden in paediatric chronic kidney disease: The Paediatric Renal Caregiver Burden Scale. J Health Psychol 2014;21:93-205. Crossref
12. Subramanian L, Kirk R, Cuttitta T, et al. Remote management for peritoneal dialysis: a qualitative study of patient, care partner, and clinician perceptions and priorities in the United States and the United Kingdom. Kidney Med 2019;1:354-65. Crossref
13. Angwenyi V, Aantjes C, Kajumi M, De Man J, Criel B, Bunders-Aelen J. Patients experiences of self-management and strategies for dealing with chronic conditions in rural Malawi. PLoS One 2018;13:e0199977. Crossref
14. Ulasi II, Ijoma CK. The enormity of chronic kidney disease in Nigeria: the situation in a teaching hospital in South-East Nigeria. J Trop Med 2010;2010:501957. Crossref
15. World Health Organization. Patient engagement. Available from: https://apps.who.int/iris/handle/10665/252269. Accessed 11 Apr 2021.
16. Spinowitz B, Pecoits-Filho R, Winkelmayer WC, et al. Economic and quality of life burden of anemia on patients with CKD on dialysis: a systematic review. J Med Econ 2019;22:593-604. Crossref
17. Sukul N, Speyer E, Tu C, et al. Pruritus and patient reported outcomes in non-dialysis CKD. Clin J Am Soc Nephrol 2019;14:673-81. Crossref
18. Gregg LP, Hedayati SS. Pharmacologic and psychological interventions for depression treatment in patients with kidney disease. Curr Opin Nephrol Hypertens 2020;29:457-64. Crossref
19. Li PK, Garcia-Garcia G, Lui SF, et al. Kidney health for everyone everywhere—from prevention to detection and equitable access to care. Kidney Int 2020;97:226-32. Crossref
20. Kalantar-Zadeh K, Li PK. Strategies to prevent kidney disease and its progression. Nat Rev Nephrol 2020;16:129-30. Crossref
21. Kalantar-Zadeh K, Wightman A, Liao S. Ensuring choice for people with kidney failure—dialysis, supportive care, and hope. N Engl J Med 2020;383:99-101. Crossref

Importance of sustaining non-pharmaceutical interventions for COVID-19 until herd immunity

© Hong Kong Academy of Medicine. CC BY-NC-ND 4.0
 
EDITORIAL
Importance of sustaining non-pharmaceutical interventions for COVID-19 until herd immunity
Junjie Huang, MD, MSc1; Wanghong Xu, PhD2,3; Zhijie Zheng, MD, PhD2,4; Martin CS Wong, MD, MPH5,6
1 Editor, Hong Kong Medical Journal
2 International Editorial Advisory Board, Hong Kong Medical Journal
3 School of Public Health, Fudan University, Shanghai, China
4 Department of Global Health, School of Public Health, Peking University, Beijing, China
5 Editor-in-Chief, Hong Kong Medical Journal
6 The Jockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
 
Corresponding author: Prof Martin CS Wong (wong_martin@cuhk.edu.hk)
 
 Full paper in PDF
 
Currently, treatments for coronavirus disease 2019 (COVID-19) are still under development and are largely supportive. Effective supportive therapies include oxygen and ventilation for patients with COVID-19 who are severely or critically ill. Among the available pharmaceutical interventions for patients with COVID-19, dexamethasone has been shown to shorten the period on a ventilator and reduce mortality of patients with severe and critical COVID-19; however, others including hydroxychloroquine, remdesivir, lopinavir/ritonavir, and interferon regimens show very limited benefits.1 In this theme issue of Hong Kong Medical Journal, we focus on the latest research on COVID-19, in particular non-pharmaceutical interventions for COVID-19 such as face mask wearing, community testing, or contact tracking and tracing.
 
Reports on the use of face masks during the COVID-19 pandemic have found differences among various regions and countries. Discrepancies in face mask wearing between cultures have also caused stigmatisation on some occasions. In general, Asian populations are more accepting of face mask wearing.2 An example is Hong Kong, where the high rate of face mask wearing is often attributed to the territory’s previous experience with severe acute respiratory syndrome in 2003.3 Despite the dense population and proximity to the epidemic centre, the number of cases has remained modest in Hong Kong. In this issue of Hong Kong Medical Journal, Tam et al4 report the results of an interesting two-part study on the mask wearing behaviour of the Hong Kong population conducted in February 2020. Although the authors found that the mask wearing rate was as high as 94.8%, 13% of pedestrians observed wore their mask incorrectly, with 42.5% of them worn too low, exposing the nostrils or mouth and 35.5% of them worn ‘inside-out’ or ‘upside-down’. The authors also found that among respondents to a survey, 78.9% of them reused face masks, and 65.9% of them tended to obtain relevant information from social media rather than potentially more reliable sources such as government websites. The authors highlight the need for more intensive health education.
 
It is also important to provide early COVID-19 testing and regular surveillance, especially for high-risk populations. International guidelines recommend a series of healthcare policy strategies that could prepare a nation for early testing, surveillance, and reporting for infectious pandemics of global concern.5 In this issue of Hong Kong Medical Journal, Leung et al6 report the characteristics and outcomes of 1258 participants tested between March and April 2020 at a temporary test centre providing early testing for COVID-19 among high-risk residents with mild symptoms. The authors found that 86 individuals tested positive for COVID-19 (test positive rate of 6.8%). Among them, 40 (46.5%) were young individuals aged 15 to 24 years, and 81 (94.2%) had a recent history of overseas travel. The authors concluded that the temporary test centre had been successful in early detection of COVID-19 among high-risk residents. Healthcare providers need to promote early testing among high-risk subjects of COVID-19 to prevent widespread community outbreak. Since that study was conducted, the Hong Kong Government strengthened the local testing capabilities, by establishing community testing centres for providing self-paid testing services to citizens, as well as compulsory testing for certain persons subject to the epidemic development and the need for infection control in Hong Kong.
 
Tracing the close contacts of COVID-19 confirmed cases is also crucial to control the pandemic. Also in this issue, Mak et al7 report the formulation of a departmental COVID-19 contingency plan utilising a system for patient tracking and facilities management, which facilitated contact tracing. The doctors and allied health staff, who serve two hospitals, also prepared a split team arrangement whereby the possibility of cross-contamination or exposure was minimised by having staff work at one hospital only. The authors report that the system was successfully implemented twice, and could be quickly implemented again if the need arises. Recently, the Hong Kong Government developed and prompted the use of a mobile application (LeaveHomeSafe; https://www.leavehomesafe.gov.hk/en/) to facilitate contact tracing throughout the territory. Users of the application scan a QR code on entering a venue, and receive a notification if a later confirmed case of COVID-19 was present at the same venue at about the same time.
 
Non-pharmaceutical interventions for COVID-19 have also been reported elsewhere. For example, a study of 139 countries found that a reduced number of COVID-19 cases was associated with the stringency of different containment interventions, particularly closures of schools, closures of workplaces, and public information campaigns.8 Another study in Hong Kong found that border restrictions, quarantine and isolation, social distancing, and changes in population behaviour (hygiene and reduction of social contact) were significantly associated with control of COVID-19 pandemic.9 However, the implementation of non-pharmaceutical interventions for COVID-19 should be tailored according to the characteristics of pandemic and capacity for individual countries. As reported in this issue by Wang et al,10 the COVID-19 outbreak in Singapore had a dual nature, with infected cases spreading differently in foreign dormitory workers and the community at the same time. Different multipronged approaches were employed to tackle the spread of the virus in the two distinct groups. The vulnerability to COVID-19 and coping capacity are different among countries.11 Therefore, it is imperative to identify the capability framework that could mitigate the COVID-19 pandemic in the global health community.12 The World Health Organization has provided guidelines for building a capability framework to control the transmission of COVID-19.13 The framework consists of several essential domains, including overall coordination, community engagement and risk communication, measurements of public health, health services and case management, prevention and control of pandemic, as well as surveillance mechanism which are important for developing tailored non-pharmaceutical strategies for individual countries
 
Author contributions
All authors contributed to the editorial, approved the final version for publication, and take responsibility for its accuracy and integrity.
 
Conflicts of interest
The authors have disclosed no conflicts of interest.
 
References
1. Repurposed antiviral drugs for Covid-19—Interim WHO solidarity trial results. N Engl J Med 2021;384:497-511. Crossref
2. Wong SH, Teoh JY, Leung CH, et al. COVID-19 and public interest in face mask use. Am J Respir Crit Care Med 2020;202:453-5. Crossref
3. Huang J, Teoh JY, Wong SH, Wong MC. The potential impact of previous exposure to SARS or MERS on control of the COVID-19 pandemic. Eur J Epidemiol 2020;35:1099-103. Crossref
4. Tam VC, Tam SY, Khaw ML, Law HK, Chan CP, Lee SW. Behavioural insights and attitudes on community masking during the initial spread of COVID-19 in Hong Kong. Hong Kong Med J 2021;27:106-12. Crossref
5. Wong MC, Teoh JY, Huang J, Wong SH. Strengthening early testing and surveillance of COVID-19 to enhance identification of asymptomatic patients. J Infect 2020;81:e112-3. Crossref
6. Leung WL, Yu EL, Wong SC, et al. Findings from the first public COVID-19 temporary test centre in Hong Kong. Hong Kong Med J 2021;27:99-105. Crossref
7. Mak ST, Fung KS, Li KK. Formulation of a departmental COVID-19 contingency plan for contact tracing and facilities management. Hong Kong Med J 2021;27:148-9. Crossref
8. Wong MC, Huang J, Teoh J, Wong SH. Evaluation on different non-pharmaceutical interventions during COVID-19 pandemic: An analysis of 139 countries. J Infect 2020;81:e70-1. Crossref
9. Cowling BJ, Ali ST, Ng TW, et al. Impact assessment of non-pharmaceutical interventions against coronavirus disease 2019 and influenza in Hong Kong: an observational study. Lancet Public Health 2020;5:e279-88. Crossref
10. Wang SS, Teo WZ, Hsu LY. Managing parallel COVID-19 epidemics in a single country. Hong Kong Med J 2021;27:145-7. Crossref
11. Wong MC, Teoh JY, Huang J, Wong SH. The potential impact of vulnerability and coping capacity on the pandemic control of COVID-19. J Infect 2020;81:816-46. Crossref
12. Wong MC, Huang J, Teoh JYC, Wong SH. Identifying a capability framework that could mitigate the coronavirus disease 2019 pandemic in a global health community. J Infect Dis 2020;222:880-1. Crossref
13. Wong MC, Huang J, Wong SH, Teoh JY. The potential effectiveness of the WHO International Health Regulations capacity requirements on control of the COVID-19 pandemic: a cross-sectional study of 114 countries. J R Soc Med 2021;114:121-31. Crossref

One year into COVID-19 pandemic, what do we have to look forward to?

© Hong Kong Academy of Medicine. CC BY-NC-ND 4.0
 
EDITORIAL
One year into COVID-19 pandemic, what do we have to look forward to?
Ivan FN Hung, MD, FRCP (Lond, Edin)
Department of Medicine, Queen Mary Hospital, Hong Kong
 
Corresponding author: Prof Ivan FN Hung (ivanhung@hku.hk)
 
 Full paper in PDF
 
At the time of writing, Hong Kong has just experienced the end of a fourth wave of the coronavirus disease 2019 (COVID-19) pandemic after imposing stringent infection control measures.1 With the recent launch of the COVID-19 vaccination programme, we are finally seeing the light at the end of the tunnel. Nevertheless, it will take major efforts from the Hong Kong SAR Government and various parties to reach the herd immunity level in order to lift all infection control measures.
 
In 2003, there was a severe acute respiratory syndrome (SARS) outbreak in Hong Kong and mainland China. Between March and June 2003, 1750 patients were diagnosed to have SARS in Hong Kong, with 286 deaths.2 Despite identification of the SARS coronavirus as the cause of SARS3 and description of the disease pathogenesis model by a team from The University of Hong Kong,4 it was a painful experience with hefty loss of life. The major outbreak in the Amoy Garden estate due to contamination of the sewage in the U-traps which subsequently led to the airborne transmission of the SARS infection among the estate residents highlighted the overcrowded living conditions in Hong Kong.5 By June 2003, 386 healthcare workers were diagnosed to have SARS and eight of them—four doctors, one nurse, and three healthcare assistants–had succumbed.3 The initial shortage of masks and protective clothing for healthcare personnel and the lack of negative pressure isolation facilities resulted in significant nosocomial transmission of the virus. The majority of the diagnoses were made clinically and radiologically, and patients were cohort in large general medical ward. Treatment options were limited to steroids and ventilator support for those who developed respiratory failure. Many patients who were fortunate to recover from the infection suffered from lung fibrosis and the crippling long-term adverse effects of high-dose steroids.6 The SARS outbreak in 2003 highlighted the lack of communication among the health authorities in Hong Kong, mainland China, and the rest of the world. The establishment of the Centre for Health Protection in Hong Kong has helped overcome this shortcoming. The introduction of negative pressure isolation facilities in all major public hospitals hugely reduces the risk of nosocomial transmission and allows infected patients to safely cohort with minimal environmental contamination.7
 
Benefitting from experiences with SARS in 2003 and the swine flu pandemic in 2009, the Department of Health in Hong Kong implemented intense surveillance measures including tight border restrictions, social distancing, and mask wearing in the community.8 Vigorous contact tracing by the Centre of Health Protection enabled early quarantine and isolation. Deep throat saliva sampling for diagnostic screening reduced the human resources needed while maintaining high sensitivity.9 Such measures resulted in a relatively low number of confirmed infections despite the Hong Kong’s status as an international transport hub. The negative pressure isolation facilities in Hospital Authority hospitals allowed prompt isolation and treatment of patients with COVID-19 with moderate to severe disease and identified risk factors. The establishment of a community treatment facility at AsiaWorld-Expo allowed the isolation of large number of confirmed patients with mild disease, thus relieving the pressure on isolation bed facilities. The recent establishment of an infection control centre at North Lantau Hospital will further increase the number of negative pressure beds available.
 
Various measures have been shown to reduce the complication rate and shorten hospital stay for patients with COVID-19. Early treatment from symptom onset with the triple combination of interferon beta-1b, lopinavir-ritonavir, and ribavirin resulted in significantly quicker clinical improvement and shorter duration of viral shedding in patients hospitalised with COVID-19.10 The choice of antivirals was based on results from previous in vitro and in vivo animal studies on repurposing drugs for treatment of SARS 2003, Middle East respiratory syndrome, and SARS-CoV-2.11 12 Remdesivir, low-dose dexamethasone, convalescent plasma, and other immunomodulatory therapies have also been used to treat patients with hyperinflammatory response.13 14 15 16 17 Regular clinical assessment of patients with COVID-19, with regular reverse transcription polymerase chain reaction or biochemical testing, as well as radiological imaging, allows for close monitoring and better prediction of the patient’s progress and for guiding changes to the patient’s treatment. Adopting the immunoglobulin G seroconversion has also facilitated patient’s discharge when clinically deem fit.
 
Looking to the future, safe and effective COVID-19 vaccines are required. At the time of writing (24 March 2021), more than 80 different vaccines are undergoing human clinical trials, and 13 have gained full approval or have been authorised for emergency use.18 The Hong Kong SAR Government has implemented a territory-wide programme to offer COVID-19 vaccinations free of charge for all Hong Kong residents. To ensure the safety and efficacy of the vaccines, the Food and Health Bureau and the Department of Health have set up an Expert Advisory Panel to the Chief Executive. The joint Scientific Committees on Emerging and Zoonotic Diseases and Vaccine Preventable Diseases also regularly review the scientific evidence and relevant data on COVID-19 vaccines procured by the Government, and provide recommendations on the population groups to receive the COVID-19 vaccines. The Expert Committee on Clinical Events Assessment Following COVID-19 Immunisation has been established to provide independent assessment of potential causal links between adverse events following immunisation with any of the COVID-19 vaccines and to provide expert advice to the Government on safety-related matters. The Hong Kong SAR Government has currently procured three different platforms of COVID-19 vaccine from different vendors, including Comirnaty19 (mRNA vaccine), CoronaVac20 (inactivated whole cell vaccine), and Oxford/AstraZeneca21 (ChAdOx1 adenovirus vector vaccine), which will provide a wide choice of COVID-19 vaccines with good safety and efficacy profiles from which Hong Kong residents can choose. The Government is also planning procurement of a fourth COVID-19 vaccine. With a low COVID-19 seroprevalence among the population in Hong Kong, a high COVID-19 vaccination rate will be important to reach the satisfactory herd immunity level to allow relaxation of infection control measures.22 Important data including the long-term safety, clinical efficacy and effectiveness, and neutralising antibody protection against the new SARS-CoV-2 variants (B.1.1.7, B.1.351 and P.1) will be essential to plan for future vaccination programmes. The frequency of COVID-19 vaccination will also depend on the rate of emergence of these new variants.
 
The lessons learned from the SARS outbreak in 2003 have helped to successfully limit the spread of COVID-19 within Hong Kong. Nevertheless, the global effort against the COVID-19 pandemic will require cooperation among governments, international organisations, research institutes, scientists, clinicians, and most important of all, individual citizens.
 
Author contributions
The author contributed to the editorial, approved the final version for publication, and takes responsibility for its accuracy and integrity.
 
Disclosures
IFN Hung is a member of the Advisory Panel on COVID-19 Vaccines; and the co-convener of the Expert Committee on Clinical Events Assessment Following COVID-19 Immunisation for the Hong Kong SAR Government.
 
References
1. Coronavirus disease (COVID-19) in HK. Available from: https://chp-dashboard.geodata.gov.hk/covid-19/en.html. Accessed 24 Mar 2021.
2. Lee SH. The SARS epidemic in Hong Kong: what lessons have we learned? JR Soc Med 2003;96:374-8. Crossref
3. Peiris JS, Lai ST, Poon LL, et al. Coronavirus as a possible cause of severe acute respiratory syndrome. Lancet 2003;361:1319-25. Crossref
4. Peiris JS, Chu CM, Cheng VC, et al. Clinical progression and viral load in a community outbreak of coronavirus-associated SARS pneumonia: a prospective study. Lancet 2003;361:1767-72. Crossref
5. Chu CM, Cheng VC, Hung IF, et al. Viral load distribution in SARS outbreak. Emerg Infect Dis 2005;11:1882-6. Crossref
6. Chan KS, Zheng JP, Mok YW, et al. SARS: prognosis, outcome and sequelae. Respirology 2003;8:S36-40. Crossref
7. Cheng VC, Wong SC, Chuang V, et al. Absence of nosocomial transmission of coronavirus disease 2019 (COVID-19) due to SARS-CoV-2 in the prepandemic phase in Hong Kong. Am J Infect Control 2020;48:890-6. Crossref
8. Cowling BJ, Ali ST, Ng TW, et al. Impact assessment of non-pharmaceutical interventions against coronavirus disease 2019 and influenza in Hong Kong: an observational study. Lancet Public Health 2020;5:e279-88. Crossref
9. To KK, Tsang OT, Leung WS, et al. Temporal profiles of viral load in posterior oropharyngeal saliva samples and serum antibody responses during infection by SARS-CoV-2: an observational cohort study. Lancet Infect Dis 2020;20:565-74. Crossref
10. Hung IF, Lung KC, Tso EY, et al. Triple combination of interferon beta-1b, lopinavir-ritonavir, and ribavirin in the treatment of patients admitted to hospital with COVID-19: an open-label, randomised, phase 2 trial. Lancet 2020;395:1695-704. Crossref
11. Yuan S, Chan CC, Chik KK, et al. Broad-spectrum host-based antivirals targeting the interferon and lipogenesis pathways as potential treatment options for the pandemic coronavirus disease 2019 (COVID-19). Viruses 2020;12:628. Crossref
12. Chu CM, Cheng VC, Hung IF, et al. Role of lopinavir/ritonavir in the treatment of SARS: initial virological and clinical findings. Thorax 2004;59;252-6. Crossref
13. Beigel JH, Tomashek KM, Dodd LE, et al. Remdesivir for the treatment of COVID-19—final report. N Engl J Med 2020;383:1813-26. Crossref
14. RECOVERY Collaborative Group; Horby P, Lim WS, et al. Dexamethasone in hospitalized patients with Covid-19. N Engl J Med 2021;384:693-704. Crossref
15. Libster R, Pérez Marc G, Wappner D, et al. Early high-titer Crossref
16. Guaraldi G, Meschiari M, Cozzi-Lepri A, et al. Tocilizumab in patients with severe COVID-19: a retrospective cohort study. Lancet Rheumatol 2020;2:e474-84. Crossref
17. Kalil AC, Patterson TF, Mehta AK, et al. Baricitinib plus remdesivir for hospitalized adults with Covid-19. N Engl J Med 2021;384:795-807. Crossref
18. World Health Organization. The COVID-19 candidate vaccine landscape and tracker. https://www.who.int/publications/m/item/draft-landscape-of-covid-19-candidate-vaccines. Accessed 24 Mar 2021.
19. Dagan N, Barda N, Kepten E, et al. BNT162b2 mRNA Covid-19 vaccine in a nationwide mass vaccination setting. N Engl J Med 2021 Feb 14. Epub ahead of print. Crossref
20. Centre for Health Protection, Department of Health, Hong Kong SAR Government. Consensus interim recommendations on the use of CoronaVac in Hong Kong. https://www.chp.gov.hk/files/pdf/consensus_interim_recommendations_on_the_use_of_coronavac_in_hk_as_of_19_feb_2021.pdf. Accessed 24 Mar 2021.
21. Ramasamy MN, Minassian AM, Ewer KJ, et al. Safety and immunogenicity of ChAdOx1 nCoV-19 vaccine administered in a prime-boost regimen in young and old adults (COV002): a single-blind, randomised, controlled, phase 2/3 trial. Lancet 2021;396:1979-93. Crossref
22. To KK, Cheng VC, Cai JP, et al. Seroprevalence of SARS-CoV-2 in Hong Kong and in residents evacuated from Hubei province, China: a multicohort study. Lancet Microbe 2020;1:e111-8. Crossref

Vaccine hesitancy and COVID-19 vaccination in Hong Kong

© Hong Kong Academy of Medicine. CC BY-NC-ND 4.0
 
EDITORIAL
Vaccine hesitancy and COVID-19 vaccination in Hong Kong
Paul KS Chan, MD, FRCPath1; Martin CS Wong, MD, MPH2; Eliza LY Wong, PhD, FHKCHSE2
1 Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
2 The Jockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
 
Corresponding author: Prof Paul KS Chan (paulkschan@cuhk.edu.hk)
 
 Full paper in PDF
 
Although the case fatality rate of coronavirus disease 2019 (COVID-19) is lower compared with deadly diseases such as smallpox and Ebola virus disease,1 the associated health and economic burden is alarming. Shifting healthcare technology and facilities to vaccine development and massive production became an international common goal. The arrival of COVID-19 vaccines was perceived as the end of health and economic suffering, and the rebirth of tourism and many other industries. Data from clinical trials of vaccines made by both the new and conventional platforms showed promising results, but the rolling out of vaccination is really challenging in some parts of the world.
 
In 2019 before the emergence of COVID-19, the World Health Organization (WHO) identified vaccine hesitancy as one of 10 major threats to global health.2 Hong Kong has a comprehensive childhood immunisation programme with an excellent uptake, and vaccine hesitancy is not often considered a problem locally. However, there are bits and pieces of information indicating that this may not be the case. In May 2009, when the WHO influenza alert level was raised to Phase 5 signifying that a pandemic was imminent, our survey indicated that only 47.9% of healthcare workers at public hospital intended to accept the flu H1N1 vaccine when available.3 The acceptance for H5N1 vaccine (another flu with pandemic threat) was even lower (34.8%). Such low intention to accept turned out to be true when the vaccination programme for pandemic flu H1N1 was initiated in Hong Kong.
 
In early 2005, Hong Kong faced a heavy flu season due to a new influenza strain (H3N2 Switzerland). The government decided to implement an extra dose of vaccine incorporated with the new strain before the summer peak. Healthcare workers again showed a low (31.8%) intention to accept.4
 
One may argue that, from these data on flu vaccines, we cannot infer a low acceptance of COVID-19 vaccines, because of the vast difference in health and economic impact. However, our repeated cross-sectional studies on the local working population show that acceptance for COVID-19 vaccines has declined from 44.2% during the first wave to 34.8% during the third wave of epidemic.5 Similarly low vaccine acceptance rates were revealed by another study which included more elderly participants, who are considered as the priority group for vaccination.6 That study also identified specific barriers for COVID-19 vaccines. For instance, 43.4% of participants expressed lack of confidence on vaccines produced by new platforms, 52.2% considered the track record of vaccine manufacturers important, and 62.5% regarded the country of vaccine production could affect their acceptance. These are beyond the key safety and efficacy issues that policy makers are focused on. It is notable that government recommendation was the strongest driver for vaccine acceptance, conferring a 10-times-higher odds of receiving vaccines among the study participants.
 
One may optimistically assume that these opinions on willingness or intention to accept will change when the public are offered vaccines. Unfortunately, despite a massive government-led vaccination campaign, the uptake after 1 month of availability was only about 6% of the total population in Hong Kong. Had we underestimated the results of pre-rolling out vaccine acceptance surveys? Had we not proactively addressed vaccine hesitancy? Although there are numerous public education and promotion materials on COVID-19 vaccines being disseminated to the public through various media, combating vaccine hesitancy is another ball game. If we do not develop an effective strategic plan to counter vaccine hesitancy, we will be unable to escape from the COVID-19 pandemic. Efforts to develop and produce vaccines for COVID-19 at unprecedented speed and scales may be in vain.
 
We believe vaccine hesitancy should be addressed by an organised and concerted effort contributed to by various stakeholders in the community. This effort should include more intensive education, provision of more evidencebased information, and public health interventions to enhance vaccine uptake.7 Exemption from travel bans, issuance of vaccination certificates, visitation rights at healthcare facilities, and incentives offered by the commercial sector to the employees are some potential strategies to increase the inoculation rate further, and this requires collaborative initiatives driven by healthcare policies.
 
Author contributions
All authors contributed to the concept and design. PKS Chan drafted the manuscript. MCS Wong and ELY Wong critically reviewed the manuscript. All authors contributed to the editorial, approved the final version for publication, and take responsibility for its accuracy and integrity.
 
Disclosures
PKS Chan is a member of the Expert Committee on Clinical Events Assessment Following COVID-19 Immunisation for the Hong Kong SAR Government. Other authors have disclosed no conflicts of interest.
 
References
1. Streeck H, Schulte B, Kümmerer BM, et al. Infection fatality rate of SARS-CoV2 in a super-spreading event in Germany. Nat Commun 2020;11:5829. Crossref
2. World Health Organization. Ten threats to global health in 2019. Available from: https://www.who.int/news-room/ spotlight/ten-threats-to-global-health-in-2019. Accessed 31 Mar 2021.
3. Chor JS, Ngai KL, Goggins WB, et al. Willingness of Hong Kong healthcare workers to accept pre-pandemic influenza vaccination at different WHO alert levels: two questionnaire surveys. BMJ 2009;339:b3391. Crossref
4. Wong MC, Nelson EA, Leung C, et al. Ad hoc influenza vaccination during years of significant antigenic drift in a tropical city with 2 seasonal peaks: a cross-sectional survey among health care practitioners. Medicine (Baltimore) 2016;95:e3359. Crossref
5. Wang K, Wong EL, Ho KF, et al. Change of willingness to accept COVID-19 vaccine and reasons of vaccine hesitancy of working people at different waves of local epidemic in Hong Kong, China: repeated cross-sectional surveys. Vaccines (Basel) 2021;9:62. Crossref
6. Wong MC, Wong EL, Huang J, et al. Acceptance of the COVID-19 vaccine based on the health belief model: A population-based survey in Hong Kong. Vaccine 2021;39:1148-56. Crossref
7. Dror AA, Eisenbach N, Taiber S, et al. Vaccine hesitancy: the next challenge in the fight against COVID-19. Eur J Epidemiol 2020;35:775-9. Crossref

Primary care doctors and the control of COVID-19

© Hong Kong Academy of Medicine. CC BY-NC-ND 4.0
 
EDITORIAL
Primary care doctors and the control of COVID-19
Paul KM Poon *, FFPH, FHKAM (Community Medicine); Samuel YS Wong, FHKAM (Community Medicine), FHKAM (Family Medicine)
Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong
 
Corresponding author: Prof Paul KM Poon (kwokmingpoon@cuhk.edu.hk)
 
 Full paper in PDF
 
In January 2021, Hong Kong marked the grim anniversary of the first reported case of coronavirus disease 2019 (COVID-19) in the territory.1 At the time of writing, Hong Kong has recorded a total of over 10 000 cases and a death toll of nearly 200, against the backdrop of over 110 000 000 cases and 2 500 000 deaths worldwide.1 2 Non-pharmaceutical interventions are capable of containing the pandemic3 with isolation of cases and quarantine of contacts being the fundamental components. However, pre-symptomatic and asymptomatic transmission of COVID-19 can undermine the effectiveness of isolation and quarantine if these measures are not coupled with rapid contact tracing and testing.4
 
In a recent review paper, it was found that neither absence nor presence of signs or symptoms of COVID-19 could accurately rule in or rule out the disease but anosmia or ageusia may be regarded as a red flag, and fever or cough is a sensitive indicator for identifying patients who need testing.5 In this issue of the Hong Kong Medical Journal, Leung et al6 report the findings of a cross-sectional study conducted using data collected from the first public temporary test centre in Hong Kong at the AsiaWorld-Expo. The authors found that although symptoms such as cough, sore throat, and runny nose were reported in 86.0% of persons who tested positive for COVID-19, these symptoms were non-specific and were also reported in 96.3% of persons who tested negative. The authors recommend that gatekeeping healthcare providers stay vigilant in arranging early testing and remain aware of both clinical and epidemiological manifestations of COVID-19. Another study conducted in Australia compared the efficiency and sensitivity of different testing approaches in detecting community transmission chains. The authors found that testing of all patients with respiratory symptoms in the community, in combination with thorough contact tracing, was most effective.7
 
Primary care doctors are the gatekeepers of our healthcare system, and the COVID-19 pandemic has highlighted the important role of primary care from the perspectives of infectious disease control and surveillance in the community. In many countries, primary care doctors are an integral part of surveillance systems for infectious diseases such as influenza.8 Similarly, well-trained primary care doctors are indispensable in the early identification and isolation of COVID-19 cases, by contributing to a successful surveillance system which can also identify changes in transmission patterns and at-risk population subgroups,9 as well as evaluate the efficacy of public health control measures.10
 
The cost-effectiveness of different COVID-19 testing strategies depends on the transmission scenario in the community, in addition to the cost per test.11 Reimer et al12 recommend evidence-based prioritisation of testing, where testing capacity and resources are limited, in order to flatten epidemic curves, lower values of effective reproduction number, and ease the burden on hospitals and intensive care units. Primary care doctors, being the first access point of the healthcare system for most of the general public, are in a prime position to practice evidence-based testing of patients in the community based on clinical assessments.
 
Primary care doctors are vital to the unprecedented global vaccination campaign. Healthcare workers are at a higher risk of contracting COVID-19, and in a systematic review, Bandyopadhyay et al13 found that general practitioners were one of the specialties at the highest risk of death from COVID-19. Healthcare workers, including primary care doctors, are recommended as a priority group for COVID-19 vaccination worldwide, including in Hong Kong14 where the COVID-19 Vaccination Programme was launched in late February.
 
Primary care doctors are also at the forefront of communicating with the community. Wong et al15 found that COVID-19 vaccine acceptance in the Hong Kong community is not high (37.2%; 95% confidence interval=34.5%-39.9%) and perceived severity, benefits of the vaccine, cues to action, access barriers, and harms were among the factors associated with acceptance. Studies from the H1N1 pandemic found that primary care doctors were highly influential in H1N1 vaccine uptake16 and it is reasonable to expect that this will also be the case for COVID-19 vaccines. Primary care doctors will require regular updates and accurate information on the vaccines to communicate clearly with their patients and public health authorities.17
 
A shortage of primary care professionals is associated with a higher death rate due to COVID-19.18 Primary health care has a crucial role in infectious disease epidemic management and well-integrated primary care and public health systems are vital for a cohesive response.19
 
Author contributions
All authors contributed to the editorial, approved the final version for publication, and take responsibility for its accuracy and integrity.
 
Conflicts of interest
All authors have disclosed no conflicts of interest.
 
References
1. Centre for Health Protection, Hong Kong SAR Government. Latest situation of cases of COVID-19. Available from: https://www.chp.gov.hk/files/pdf/local_situation_covid19_en.pdf. Accessed 1 Mar 2021.
2. World Health Organization. WHO coronavirus (COVID-19) dashboard. Available from: https://covid19.who.int/?gclid=CjwKCAiAm-2BBhANEiwAe7eyFCS8TBp9v0BBj5Rl ysLobOmxwRL_p6NvscnuHkCOwNIaSIxv4DQRcRoCl8UQAvD_BwE. Accessed 1 Mar 2021.
3. Bo Y, Guo C, Lin C, et al. Effectiveness of non-pharmaceutical interventions on COVID-19 transmission in 190 countries from 23 January to 13 April 2020. Int J Infect Dis 2021;102:247-53. Crossref
4. Moghadas SM, Fitzpatrick MC, Sah P, et al. The implications of silent transmission for the control of COVID-19 outbreaks. Proc Natl Acad Sci U S A 2020;117:17513-5. Crossref
5. Struyf T, Deeks JJ, Dinnes J, et al. Signs and symptoms to determine if a patient presenting in primary care or hospital outpatient settings has COVID-19 disease. Cochrane Database Syst Rev 2020;7(7):CD013665. Crossref
6. Leung WL, Yu EL, Wong SC, et al. Findings from the first public COVID-19 temporary test centre in Hong Kong. Hong Kong Med J 2021;27:99-105. Crossref
7. Lokuge, K, Banks E, Davis S, et al. Exit strategies: optimising feasible surveillance for detection, elimination and ongoing prevention of COVID-19 community transmission. BMC Med 2021;19:50. Crossref
8. European Centre for Disease Prevention and Control. Facts about influenza surveillance. Available from: https:// www.ecdc.europa.eu/en/seasonal-influenza/surveillance-and-disease-data/facts-sentinel-surveillance. Accessed 1 Mar 2021.
9. Paquette D, Bell C, Roy M, et al. Laboratory-confirmed COVID-19 in children and youth in Canada, January 15-April 27, 2020. Can Commun Dis Rep 2020;46:121-4. Crossref
10. Lai S, Ruktanonchai NW, Zhou L, et al. Effect of non-pharmaceutical interventions to contain COVID-19 in China. Nature 2020;585:410-3. Crossref
11. Du Z, Pandey A, Bai Y, et al. Comparative cost-effectiveness of SARS-CoV-2 testing strategies in the USA: a modelling study. Lancet Public Health 2021;6:e184-91. Crossref
12. Reimer JR, Ahmed SM, Brintz B, et al. Using a clinical prediction rule to prioritize diagnostic testing leads to reduced transmission and hospital burden: A modeling example of early SARS-CoV-2. Clin Infect Dis 2021 Feb 23. Epub ahead of print. Crossref
13. Bandyopadhyay S, Baticulon RE, Kadhum M, et al. Infection and mortality of healthcare workers worldwide from COVID-19: a systematic review. BMJ Glob Health 2020;5:e003097.
14. Centre for Health Protection, Hong Kong SAR Government. Consensus interim recommendations on the use of COVID-19 vaccines in Hong Kong (as of Jan 7, 2021). Available from: https://www.chp.gov.hk/files/pdf/consensus_interim_recommendations_on_the_use_of_covid19_vaccines_inhk.pdf. Accessed 1 Mar 2021.
15. Wong MC, Wong EL, Huang J, et al. Acceptance of the COVID-19 vaccine based on the health belief model: A population-based survey in Hong Kong. Vaccine 2021;39:1148-56. Crossref
16. Danchin M, Biezen R, Manski-Nankervis JA, Kaufman J, Leask J. Preparing the public for COVID-19 vaccines: How can general practitioners build vaccine confidence and optimise uptake for themselves and their patients? Aust J Gen Pract 2020;49:625-9. Crossref
17. Kunin M, Engelhard D, Thomas S, Ashworth M, Piterman L. General practitioners’ challenges during the 2009/A/H1N1 vaccination campaigns in Australia, Israel and England: a qualitative study. Aust Fam Physician 2013;42:811-5.
18. Baltrus PT, Douglas M, Li C, et al. Percentage of Black population and primary care shortage areas associated with higher COVID-19 case and death rates in Georgia counties. South Med J 2021;114:57-62. Crossref
19. Desborough J, Dykgraaf SH, Phillips C, et al. Lessons for the global primary care response to COVID-19: a rapid review of evidence from past epidemics. Fam Pract 2021 Feb 15. Epub ahead of print.

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