Incidence of #SARS-CoV-2 infection according to baseline antibody status in staff and residents of 100 long-term care facilities (#VIVALDI): a prospective cohort study - The Lancet Healthy Longevity
▻https://www.thelancet.com/journals/lanhl/article/PIIS2666-7568(21)00093-3/abstract
In summary, the risk of a SARS-CoV-2 #reinfection was substantially reduced in staff and residents of LTCFs who were SARS-CoV-2 antibody-positive and the observed reinfections were not clinically severe. Understanding the correlates of immunity that protect against future infection will be fundamental to policy decisions regarding LTCFs, including re-vaccination schedules and the ongoing need for non-pharmaceutical interventions to prevent SARS-CoV-2 transmission.