期刊
EUROSURVEILLANCE
卷 25, 期 31, 页码 2-7出版社
EUR CENTRE DIS PREVENTION & CONTROL
DOI: 10.2807/1560-7917.ES.2020.25.31.2001383
关键词
-
资金
- European Commission
- VRT Foundation Trento project Epidemiologia e transmissione di COVID-19 in Trentino
We analysed 5,484 close contacts of coronavirus disease (COVID-19) cases in Italy, all tested for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Infection fatality ratio was 0.43% (95% confidence interval (CI): 0.21-0.79) for individuals younger than 70 years and 10.5% ( 95% CI: 8.0-13.6) for older individuals. Risk of death after infection was 62% lower (95% CI: 31-80) in clusters identified after 16 March 2020 and 1.8- fold higher for males ( 95% CI: 1.03-3.16).
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