A Comparative study on epidemiological characteristics, transmissibility, and pathogenicity of three COVID-19 outbreaks caused by different variants.

Chan Liu,Jianhua Lu,Peihua Li,Siyang Feng,Yichao Guo,Kangguo Li,Benhua Zhao,Yanhua Su,Tianmu Chen,Xuan Zou

International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases（2023）

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摘要

Omicron BA.2 had the greatest serial interval, transmissibility, and transmission speed, followed by BA.1 and then Delta. Compared to Delta and Omicron BA.1 variants, Omicron BA.2 variants may be less pathogenic and more difficult to control than Omicron BA.1 and Delta.

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关键词

COVID-19,Delta,Omicron BA.1,Omicron BA.2,Pathogenicity,Transmissibility,Variants

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