Impact of the Omicron variant on SARS-CoV-2 reinfections in France, March 2021 to February 2022
EUROSURVEILLANCE(2022)
摘要
Since the first reports in summer 2020, SARS-CoV-2 reinfections have raised concerns about the immunogenicity of the virus, which will affect SARS-CoV-2 epidemiology and possibly the burden of COVID-19 on our societies in the future. This study provides data on the frequency and characteristics of possible reinfections, using the French national COVID-19 testing database. The Omicron variant had a large impact on the frequency of possible reinfections in France, which represented 3.8% of all confirmed COVID-19 cases since December 2021.
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关键词
COVID-19,Omicron,SARS-CoV-2,reinfection
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