Methods| Serum samples were obtained from 3 groups of individuals. At Emory University,
hospitalized adults with SARS-CoV-2 infection (polymerase chain reaction confirmed) were …

Methods| Fully vaccinated health care workers subsequently diagnosed with SARS-CoV-2
breakthrough infection based on a positive polymerase chain reaction (PCR) test result were …

One year in the coronavirus disease 2019 (COVID-19) pandemic, the first vaccines are
being rolled out under emergency use authorizations. It is of great concern that newly …

Understanding the impact of prior infection with severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) on the response to vaccination is a priority for responding to …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) mutations may diminish
vaccine-induced protective immune responses, particularly as antibody titers wane over …

On December 23, 2021, five groups published their research results of clinical-approved
monoclonal antibodies, convalescent serum, and vaccine serum against B. 1.1. 529 …

Although infections among vaccinated individuals lead to milder COVID-19 symptoms
relative to those in unvaccinated subjects, the specificity and durability of antibody …

Background: Recently emerged SARS-CoV-2 variants may pose a threat to immunity
derived from prototypical SARS-CoV-2 infection or vaccination. A systematic summary of the …

Methods| We evaluated anti–SARS-CoV-2 antibodies at baseline and approximately 60
days later in a convenience sample of health care personnel at Vanderbilt University …

ABSTRACT DNA sequence analysis recently identified the novel SARS-CoV-2 variant B.
1.526 that is spreading at an alarming rate in the New York City area. Two versions of the …