2021 年 8 月至 2022 年 3 月期间，意大利 SARS-CoV-2 再感染的风险和保护因素监测数据。
Risk and protective factors for SARS-CoV-2 reinfections, surveillance data, Italy, August 2021 to March 2022.
机构信息
Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.
The members of the Italian Integrated Surveillance of COVID-19 study group are acknowledged at the end of the article.
出版信息
Euro Surveill. 2022 May;27(20). doi: 10.2807/1560-7917.ES.2022.27.20.2200372.
We explored the risk factors associated with SARS-CoV-2 reinfections in Italy between August 2021 and March 2022. Regardless of the prevalent virus variant, being unvaccinated was the most relevant risk factor for reinfection. The risk of reinfection increased almost 18-fold following emergence of the Omicron variant compared with Delta. A severe first SARS-CoV-2 infection and age over 60 years were significant risk factors for severe reinfection.
我们探索了 2021 年 8 月至 2022 年 3 月期间意大利与 SARS-CoV-2 再感染相关的风险因素。无论流行的病毒变异如何，未接种疫苗是再感染的最相关风险因素。与 Delta 相比，Omicron 变异株出现后，再感染的风险增加了近 18 倍。初次 SARS-CoV-2 感染严重和年龄超过 60 岁是严重再感染的显著风险因素。
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