Background. The epidemic of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-
2) that originated in Wuhan, China in late 2019 is now pandemic. Reliable estimates of …

Summary Background Since December, 2019, Wuhan, China, has experienced an outbreak
of coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome …

France has been heavily affected by the severe acute respiratory syndrome coronavirus 2
(SARS-CoV-2) pandemic and went into lockdown on 17 March 2020. Using models applied …

Mortality is high among severe patients with 2019 novel coronavirus‐infected disease
(COVID‐19). Early prediction of progression to severe cases is needed. We retrospectively …

The spread of a novel pathogenic infectious agent eliciting protective immunity is typically
characterised by three distinct phases:(I) an initial phase of slow accumulation of new …

The incubation period, or the time from infection to symptom onset, of COVID-19 has usually
been estimated by using data collected through interviews with cases and their contacts …

Purpose SARS-CoV-2 is a recently emerged ß-coronavirus. Here we present the current
knowledge on its epidemiologic features. Methods Non-systematic review. Results SARS …

Background Mortality is a key component of the natural history of COVID-19 infection.
Surveillance data on COVID-19 deaths and case diagnoses are widely available in the …

Introduction This paper describes how mortality among hospitalised COVID-19 patients
changed during the first three waves of the epidemic in Italy. Methods This prospective …

Abstract On March 11, 2020, Italy imposed a national lockdown to curtail the spread of
severe acute respiratory syndrome coronavirus 2. We estimate that, 14 days after lockdown …