Risk of Symptomatic Infection During a Second Coronavirus Disease 2019 Wave in Severe Acute Respiratory Syndrome Coronavirus 2–Seropositive Individuals. (16th June 2021)

• Record Type: Journal Article
• Authors: Manica, Mattia; Pancheri, Serena; Poletti, Piero; Giovanazzi, Giulia; Guzzetta, Giorgio; Trentini, Filippo; Marziano, Valentina; Ajelli, Marco; Grazia Zuccali, Maria; Benetollo, Pier Paolo; Merler, Stefano; Ferro, Antonio
• Is Part Of: Clinical infectious diseases. Volume 74:Number 5(2022)
• Page Start: 893
• Page End: 896
• Publication Date: 2021-06-16
• Subjects: serological screening -- COVID-19 -- SARS-CoV-2 -- natural immunity -- reinfection risk; Communicable diseases -- Periodicals; 616.905
• DOI: 10.1093/cid/ciab556
• Languages: English
• ISSNs: 1058-4838

Abstract

Abstract: We analyzed 221 coronavirus disease 2019 cases identified between June 2020 and January 2021 in 6074 individuals screened for immunoglobulin G antibodies in May 2020, representing 77% of residents of 5 Italian municipalities. The relative risk of developing symptomatic infection in seropositive participants was 0.055 (95% confidence interval, .014–.220).