Prevalence of SARS-CoV-2, Verona, Italy, April–May 2020

Massimo Guerriero; Zeno Bisoffi; Albino Poli; Claudio Micheletto; Antonio Conti; Carlo Pomari


Emerging Infectious Diseases. 2021;27(1):229-232. 

In This Article

Abstract and Introduction


We used random sampling to estimate the prevalence of severe acute respiratory syndrome coronavirus 2 infection in Verona, Italy. Of 1,515 participants, 2.6% tested positive by serologic assay and 0.7% by reverse transcription PCR. We used latent class analysis to estimate a 3.0% probability of infection and 2.0% death rate.


On May 25, 2020, Italy had the third highest number of cases and the second highest number of deaths in Europe caused by the novel betacoronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)[1] as part of the ongoing pandemic of coronavirus disease (COVID-19). The continuing spread of infection and the resulting strain on healthcare systems has made the identification of asymptomatic persons crucial to limiting transmission.[2–6] We conducted a cross-sectional study on a representative sample of the general population to estimate the prevalence and death rate of SARS-CoV-2 infection in Verona, Italy.