Epidemiology of Infections with SARS-CoV-2 Omicron BA.2 Variant, Hong Kong, January–March 2022

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Abstract

Our analysis of data collected from multiple epidemics in Hong Kong indicated a shorter serial interval and generation time of infections with the SARS-CoV-2 Omicron variant. The age-specific case-fatality risk for Omicron BA.2.2 case-patients without complete primary vaccination was comparable to that of persons infected with ancestral strains in earlier waves.

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Mefsin, Y. M., Chen, D., Bond, H. S., Lin, Y., Cheung, J. K., Wong, J. Y., … Cowling, B. J. (2022). Epidemiology of Infections with SARS-CoV-2 Omicron BA.2 Variant, Hong Kong, January–March 2022. Emerging Infectious Diseases, 28(9), 1856–1858. https://doi.org/10.3201/eid2809.220613

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