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Infection fatality ratio of SARS-CoV-2 in Italy

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arxiv 2007.04381 v1 pith:CNUKTIC4 submitted 2020-07-08 q-bio.PE

Infection fatality ratio of SARS-CoV-2 in Italy

Piero Poletti , Marcello Tirani , Danilo Cereda , Filippo Trentini , Giorgio Guzzetta , Valentina Marziano , Sabrina Buoro , Simona Riboli
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Lucia Crottogini Raffaella Piccarreta Alessandra Piatti Giacomo Grasselli Alessia Melegaro Maria Gramegna Marco Ajelli Stefano Merler
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keywords infectionfatalityitalyratiosars-cov-2analyzedcardiovascularcases
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We analyzed 5,484 close contacts of COVID-19 cases from Italy, all of them tested for SARS-CoV-2 infection. We found an infection fatality ratio of 2.2% (95%CI 1.69-2.81%) and identified male sex, age >70 years, cardiovascular comorbidities, and infection early in the epidemics as risk factors for death.

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