CDC Study showing decline in SARS-CoV-2 antibodies after infection suggests antibody surveys underestimate infections

Decline in SARS-CoV-2 Antibodies After Mild Infection Among Frontline Health Care Personnel in a Multistate Hospital Network — 12 States, April–August 2020 – CDC Morbidity and Mortality Weekly Report

Commentary: COVID-19 antibody surveys underestimate infections: study – MedicalXpress

Commentary on Twitter (Thread – Click for more)

1/?Precipitous decline in #SARSCoV2 antibodies: study participants who'd been infected and had detectable antibodies were retested 60 days later. 94% showed antibody decline & 28% had no detectable antibodies. They had "seroreverted". How that impacts reinfection risk is unknown pic.twitter.com/QsvQTE9jVH

— Dr. Ali Nouri (@AliNouriPhD) November 25, 2020