Background SARS-CoV-2, the virus that causes COVID-19 disease, was first identified in
Wuhan, China in December 2019, with subsequent worldwide spread. The first US cases …

Background Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that
causes coronavirus disease 2019 (COVID-19), was first identified in Wuhan, China, in …

Projections of the stage of the Severe Acute Respiratory Syndrome-Coronavirus-2 (SARS-
CoV-2) pandemic and local, regional and national public health policies to limit coronavirus …

Background Characterizing the kinetics of the antibody response to severe acute respiratory
syndrome coronavirus 2 (SARS‐CoV‐2) is of critical importance to developing strategies …

Abstract Background The Recipient Epidemiology and Donor Evaluation Study-IV-Pediatric
(REDS-IV-P) Epidemiology, Surveillance and Preparedness of the Novel SARS-CoV-2 …

Importance People who have been infected with or vaccinated against SARS-CoV-2 have
reduced risk of subsequent infection, but the proportion of people in the US with SARS-CoV …

Background With limited severe acute respiratory syndrome coronavirus (SARS-CoV-2)
testing capacity in the United States at the start of the epidemic (January–March 2020) …

Background Case detection underestimates the burden of the COVID‐19 pandemic.
Following the first COVID‐19 wave, we estimated the seroprevalence of severe acute …

Background Previous SARS-CoV-2 infection and coronavirus disease 2019 (COVID-19)
vaccination, independently and combined (“hybrid immunity”), result in partial protection …

By the third quarter of 2022, an estimated 96.4% of persons aged≥ 16 years in a
longitudinal blood donor cohort had SARS-CoV-2 antibodies from previous infection or …