A Majority of Adults Have Pre-Existing Antibody Reactivity to SARS-CoV-2: Study
Most adults examined in a recent study have pre-existing antibody reactivity to SARS-CoV-2, even if they haven’t had COVID-19. Interestingly, the research by Majdoubi, Michalski et al demonstrated the existence of these cross-reactive antibodies as far back as May 2020.