Affiliation:
1. JC School of Public Health and Primary Care, Faculty of Medicine Chinese University of Hong Kong Hong Kong China
2. Centre for Health Systems and Policy Research, Faculty of Medicine Chinese University of Hong Kong Hong Kong China
Abstract
AbstractEmpirical evidence on the epidemiological characteristics of the emerged SARS‐CoV‐2 variants could shed light on the transmission potential of the virus and strategic outbreak control planning. In this study, by using contact tracing data collected during an Omicron‐predominant epidemic phase in Hong Kong, we estimated the mean serial interval of SARS‐CoV‐2 Omicron BA.4, BA.5, and BA.2.12.1 variants at 2.8 days (95% credible interval [CrI]: 1.5, 6.7), 2.7 days (95% CrI: 2.1, 3.6), and 4.4 days (95% CrI: 2.6, 7.5), respectively, with adjustment for right truncation and sampling bias. The short serial interval for the current circulating variant indicated that outbreak mitigations through contact tracing and case isolation would be quite challenging.
Funder
Health and Medical Research Fund
National Natural Science Foundation of China
Subject
Infectious Diseases,Public Health, Environmental and Occupational Health,Pulmonary and Respiratory Medicine,Epidemiology
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