Cohort study: SARS-CoV-2 infection rates of antibody-positive vs. antibody-negative health-care workers – previous infection was associated with 84% lower risk of (re)infection

SARS-CoV-2 infection rates of antibody-positive compared with antibody-negative health-care workers in England: a large, multicentre, prospective cohort study (SIREN) – The Lancet

Commentary: Correlates of protection from SARS-CoV-2 infection – The Lancet

Commentary on Twitter

💥SIREN STUDY💥 @TheLancet
Previous SARS-CoV-2 infection
provides protection similar to or even better than currently used vaccines
📌84% risk reduction(RR) for reinfection
📌93% RR for those w symptomatic infections
📌B.1.1.7 circulate during the studyhttps://t.co/uQ3M9yahAv pic.twitter.com/leQCNbmHQO

— Antibiotic Steward Bassam Ghanem 🅱️C🆔🅿️🌟 (@ABsteward) April 10, 2021