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Article
Geriatrics & Gerontology
Jiehu Yuan et al.
Summary: This qualitative study aimed to explore the reasons behind COVID-19 vaccine hesitancy among Chinese older adults in Hong Kong. The study found that older adults' hesitancy was influenced by factors such as lack of decisional support, negative perception of aging, fatalistic risk attitudes, present-oriented time perspectives, and negative values on western biomedicine.
JOURNALS OF GERONTOLOGY SERIES B-PSYCHOLOGICAL SCIENCES AND SOCIAL SCIENCES
(2023)
Article
Immunology
Benjamin R. Young et al.
Summary: We examined the frequency of residential case clusters and the effectiveness of compulsory testing in identifying COVID-19 cases in Hong Kong. The majority of buildings with COVID-19 cases had only one reported case, and compulsory testing detected 13% of daily reported cases. While compulsory testing notices are important for eliminating infections and controlling the epidemic at an early stage, they may not be very efficient in response to sustained community transmission. Mandatory building-wide testing was implemented in Hong Kong to minimize transmission within high-rise buildings and residential case clusters.
JOURNAL OF INFECTIOUS DISEASES
(2023)
Article
Immunology
Jessica Y. Wong et al.
Summary: Evaluating changes in COVID-19 severity over time is crucial when novel variants emerge. Intrinsic fatality risk was similar between Omicron and ancestral strains. Risk was inversely proportional to number of doses received, and higher risk was observed in older ages.
JOURNAL OF INFECTIOUS DISEASES
(2023)
Article
Immunology
Bingyi Yang et al.
Summary: This study reported the utility of population-wide COVID-19 testing in detecting unrecognized infections and clusters that were not identified through existing surveillance approaches including contact tracing.
CLINICAL INFECTIOUS DISEASES
(2022)
Article
Medicine, General & Internal
Nicole Wolter et al.
Summary: According to data analysis from South Africa, individuals infected with the omicron variant have a lower likelihood of hospitalization compared to those infected with non-omicron variants. Furthermore, individuals infected with the omicron variant have a lower odds of severe disease compared to individuals infected with the earlier delta variant.
Article
Biochemistry & Molecular Biology
Hung Fu Tseng et al.
Summary: A test-negative case-control analysis using data from a diverse population in California, USA, demonstrates that vaccine efficacy of a three-dose regimen of the mRNA-1273 COVID-19 vaccine is reduced against infection with the Omicron SARS-CoV-2 variant in comparison to Delta, but that efficacy against hospitalization remained high for both variants.
Article
Multidisciplinary Sciences
Haogao Gu et al.
Summary: Hong Kong has successfully controlled the transmission of SARS-CoV-2 through an elimination strategy and stringent measures. The majority of community-acquired cases were caused by three importations, and increased transmission occurred after prolonged restrictions, possibly due to adherence fatigue. Strong border control and community surveillance are essential for preventing local outbreaks.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Zhanwei Du et al.
Summary: Hong Kong has implemented strict measures to control the COVID-19 epidemic waves, but the impact of these measures has been reduced in the fourth wave due to pandemic fatigue. Through telephone surveys and mathematical models, the study analyzes the impact of pandemic fatigue on risk perception and self-protective behaviors, highlighting the importance of mitigating pandemic fatigue in controlling the spread of COVID-19.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Infectious Diseases
Martina E. McMenamin et al.
Summary: In Hong Kong, two doses of either BNT162b2 or CoronaVac vaccines are effective in preventing severe disease and death, with higher effectiveness seen in adults aged 60 years or older with BNT162b2. Three doses of either vaccine offer a very high level of protection against severe or fatal outcomes.
LANCET INFECTIOUS DISEASES
(2022)
Article
Public, Environmental & Occupational Health
Chuan De Foo et al.
Summary: The COVID-19 pandemic is not the last, and Public Health and Social Measures (PHSMs) need to be made permanent in health systems to tackle future outbreaks. The interactions between PHSMs and their key indicators influence their strength and duration, and strong governance structures and community engagement are needed to safeguard lives and livelihoods.
Article
Immunology
Songhua Hu et al.
Summary: This study examined the association between vaccine hesitancy and vaccination rates, and the factors that contribute to disparities in vaccine uptake. The results showed a negative link between vaccine hesitancy and vaccination rates, with the difference between the two widening over time. Counties with higher socioeconomic statuses, more Asian and Hispanic populations, more elderly residents, greater health insurance coverage, and more Democrats presented lower vaccine hesitancy and higher vaccination rates. However, the underlying determinants of vaccination coverage and vaccine hesitancy had divergent associations with exogenous variables.
Article
Immunology
Rosana Wing-Shan Poon et al.
Summary: The SARS-CoV-2 Omicron variant has caused a major wave of COVID-19 in Hong Kong from January to May 2022. A seroprevalence study found that although most individuals had been vaccinated or infected after the fifth wave, children and older adults remained the most vulnerable groups. Targeted public health measures should be implemented to mitigate the healthcare consequences of future waves.
EMERGING MICROBES & INFECTIONS
(2022)
Editorial Material
Public, Environmental & Occupational Health
[Anonymous]
LANCET GLOBAL HEALTH
(2022)
Article
Immunology
Yonatan M. Mefsin et al.
Summary: Data analysis from multiple epidemics in Hong Kong demonstrated that the SARS-CoV-2 Omicron variant has a shorter serial interval and generation time compared to earlier strains. The age-specific case-fatality risk for Omicron BA.2.2 case-patients without complete primary vaccination was similar to that of individuals infected with ancestral strains in earlier waves.
EMERGING INFECTIOUS DISEASES
(2022)
Review
Medicine, General & Internal
Jeffrey D. Sachs et al.
Article
Health Care Sciences & Services
Jingyi Xiao et al.
Summary: This study explores the factors associated with vaccine hesitancy and uptake among adults in Hong Kong before and after the COVID-19 vaccination program. The findings show that the levels of vaccine hesitancy varied over time. It was observed that individuals with chronic medical conditions were more likely to be hesitant two to five months after the program implementation. Confidence in the government and in COVID-19 vaccines were associated with lower vaccine hesitancy at different stages of the program. This study emphasizes the importance of monitoring temporal changes in vaccine hesitancy and adjusting promotion strategies accordingly to increase vaccination uptake.
LANCET REGIONAL HEALTH-WESTERN PACIFIC
(2022)
Letter
Immunology
Bingyi Yang et al.
Summary: International travel controls implemented early can lead to a 5-week delay in the first peak of COVID-19 cases, showing their effectiveness in controlling the pandemic.
EMERGING INFECTIOUS DISEASES
(2022)
Article
Infectious Diseases
You Li et al.
Summary: The study shows that the introduction of NPIs such as school closure, workplace closure, public events ban, requirements to stay at home, and internal movement limits is associated with reduced transmission of SARS-CoV-2, while lifting these NPIs leads to an increase in transmission. The effect is delayed by 1-3 weeks, with a longer delay when lifting NPIs.
LANCET INFECTIOUS DISEASES
(2021)
Article
Medicine, General & Internal
Raphael Sonabend et al.
Summary: The study assessed the UK Government's four-step process to easing lockdown restrictions in England, taking into account the impact of the Delta variant and other factors. The findings suggest that the risk of a large wave of COVID-19 hospital admissions resulting from lifting NPIs can be mitigated but there is substantial uncertainty in the epidemic trajectory due to the emergence of the Delta variant.
Editorial Material
Medicine, General & Internal
Chuan De Foo et al.
Article
Multidisciplinary Sciences
Kathy Leung et al.
Summary: The study introduces a new framework that parameterizes disease transmission models with age-specific digital mobility data to track the local effective reproduction number of COVID-19 in near real time. By integrating valid digital proxies of physical mixing into conventional epidemic models, accurate nowcast and forecast of COVID-19 epidemics can be obtained. The integration of travel card data from Hong Kong into a transmission model shows promising potential in tracking transmissibility in near real-time.
NATURE COMMUNICATIONS
(2021)
Article
Medicine, General & Internal
Siaw S. Boon et al.
Summary: This study conducted in Hong Kong among the general public showed a low prevalence of unidentified SARS-CoV-2 infection after 3 major waves of the pandemic, indicating the success of pandemic mitigation through stringent isolation and quarantine policies without complete city lockdown. More than 99.5% of the general population in Hong Kong remain naive to SARS-CoV-2, emphasizing the urgent need to achieve high vaccine coverage.
Article
Multidisciplinary Sciences
Pei Sen et al.
Summary: The COVID-19 pandemic in the United States in 2020 was characterized by increasing ascertainment rates, high population susceptibility, and rising community infectious rates, with infection fatality rate decreasing towards the end of the year.
Article
Medicine, General & Internal
Qun Li et al.
NEW ENGLAND JOURNAL OF MEDICINE
(2020)
Article
Public, Environmental & Occupational Health
Joel Hellewell et al.
LANCET GLOBAL HEALTH
(2020)
Article
Biochemistry & Molecular Biology
Xi He et al.
Article
Biochemistry & Molecular Biology
Dillon C. Adam et al.
Article
Infectious Diseases
Kelvin Kai-Wang To et al.
Article
Public, Environmental & Occupational Health
Anne Cori et al.
AMERICAN JOURNAL OF EPIDEMIOLOGY
(2013)
Article
Multidisciplinary Sciences
Christophe Fraser
