Dataset Information

Restaurant-Based Measures to Control Community Transmission of COVID-19, Hong Kong.

ABSTRACT: Controlling transmission in restaurants is an important component of public health and social measures for coronavirus disease. We examined the effects of restaurant measures in Hong Kong. Our findings indicate that shortening operating hours did not have an effect on time-varying effective reproduction number when capacity was already reduced.

SUBMITTER: Ho F

PROVIDER: S-EPMC8888230 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature

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Restaurant-Based Measures to Control Community Transmission of COVID-19, Hong Kong.

Ho Faith F Tsang Tim K TK Gao Huizhi H Xiao Jingyi J Lau Eric H Y EHY Wong Jessica Y JY Wu Peng P Leung Gabriel M GM Cowling Benjamin J BJ

Emerging infectious diseases 20220301 3

Controlling transmission in restaurants is an important component of public health and social measures for coronavirus disease. We examined the effects of restaurant measures in Hong Kong. Our findings indicate that shortening operating hours did not have an effect on time-varying effective reproduction number when capacity was already reduced. ...[more]

PMID: 35202535

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Project description:BackgroundHong Kong contained COVID-19 for two years but experienced a large epidemic of Omicron BA.2 in early 2022 and endemic transmission of Omicron subvariants thereafter. We reflected on pandemic preparedness and responses by assessing COVID-19 transmission and associated disease burden in the context of implementation of various public health and social measures (PHSMs).MethodsWe examined the use and impact of pandemic controls in Hong Kong by analysing data on more than 1.7 million confirmed COVID-19 cases and characterizing the temporal changes non-pharmaceutical and pharmaceutical interventions implemented from January 2020 through to 30 December 2022. We estimated the daily effective reproductive number (Rt) to track changes in transmissibility and effectiveness of community-based measures against infection over time. We examined the temporal changes of pharmaceutical interventions, mortality rate and case-fatality risks (CFRs), particularly among older adults.FindingsHong Kong experienced four local epidemic waves predominated by the ancestral strain in 2020 and early 2021 and prevented multiple SARS-CoV-2 variants from spreading in the community before 2022. Strict travel-related, case-based, and community-based measures were increasingly tightened in Hong Kong over the first two years of the pandemic. However, even very stringent measures were unable to contain the spread of Omicron BA.2 in Hong Kong. Despite high overall vaccination uptake (>70% with at least two doses), high mortality was observed during the Omicron BA.2 wave due to lower vaccine coverage (42%) among adults ≥65 years of age. Increases in antiviral usage and vaccination uptake over time through 2022 was associated with decreased case fatality risks.InterpretationIntegrated strict measures were able to reduce importation risks and interrupt local transmission to contain COVID-19 transmission and disease burden while awaiting vaccine development and rollout. Increasing coverage of pharmaceutical interventions among high-risk groups reduced infection-related mortality and mitigated the adverse health impact of the pandemic.FundingHealth and Medical Research Fund.

Dataset Information

Restaurant-Based Measures to Control Community Transmission of COVID-19, Hong Kong.

Publications

Restaurant-Based Measures to Control Community Transmission of COVID-19, Hong Kong.

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