Research of Epidemiologic Feature and Control of SARS-CoV-2 Omicron Subvariants BA.4 and BA.5

Yu WU, Jue LIU, Min LIU, Wannian LIANG

doi:10.12114/j.issn.1007-9572.2022.0538

Zhongguo quanke yixue (Oct 2022)

Research of Epidemiologic Feature and Control of SARS-CoV-2 Omicron Subvariants BA.4 and BA.5

Yu WU, Jue LIU, Min LIU, Wannian LIANG

Affiliations

Yu WU, Jue LIU, Min LIU, Wannian LIANG: 1. Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China;2. Vanke School of Public Health, Tsinghua University, Beijing 100084, China

DOI: https://doi.org/10.12114/j.issn.1007-9572.2022.0538
Journal volume & issue: Vol. 25, no. 30
pp. 3721 – 3725

Abstract

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The global COVID-19 is still in a pandemic state, and Omicron is still the dominant variant in the world, accounting for about 99% of the global gene sequence. Many regions around the world are experiencing the seventh wave of the epidemic. This round of epidemics is mainly caused by Omicron subvariants BA.4 and BA.5, but the epidemiological characteristics of Omicron subvariants BA.4 and BA.5 are still unclear, bringing great challenges to the prevention and control of the epidemic in countries and regions. In this study, discovery and epidemic status, the incubation period, transmissibility, clinical symptoms, case fatality rate, and the protective effect of vaccines of Omicron subvariants BA.4 and BA.5 were reviewed, in order to provide reference for scientific prevention and control of Omicron subvariants BA.4 and BA.5.

sars-cov-2|omicron variants|ba.4 subtype|ba.5 subtype|epidemiology|disease transmission, infectious|vaccines|signs and symptoms

Published in Zhongguo quanke yixue

ISSN: 1007-9572 (Print)
Publisher: Chinese General Practice Publishing House Co., Ltd
Country of publisher: China
LCC subjects: Medicine
Website: https://www.chinagp.net/EN/1007-9572/home.shtml

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Abstract

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