sars-cov-2 lethality increased over time in two italian provinces
sars-cov-2 lethality increased over time in two italian provinces
some experts recently reported that sars-cov-2 lethality decreased considerably, but no evidence is yet available.", "we carried out a retrospective cohort study on 2493 sars-cov-2 infected subjects from two italian provinces, evaluating the potential variation of the case-fatality rate over time.")