P. Poletti, M. Tirani, D. Cereda, F. Trentini, G. Guzzetta, V. Marziano, S. Buoro, Simona Riboli, L. Crottogini, R. Piccarreta, A. Piatti, G. Grasselli, A. Melegaro, M. Gramegna, M. Ajelli, S. Merler
Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin, 2020
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).
Cited by 34 publications.
Field of study: Medicine