The ongoing evolution of the SARS-CoV-2 virus has led to a move to update vaccine
antigens in 2022 and 2023. These updated antigens were chosen and approved based …

The emergence of Omicron variants coincided with declining vaccine-induced protection
against SARS-CoV-2. Two bivalent mRNA vaccines, mRNA-1273.222 (Moderna) and …

Background As older age and having certain comorbidities can influence humoral
responses to vaccination, we studied antibody responses after the COVID-19 booster …

SARS-CoV-2 vaccination has reduced hospitalization and mortality for nursing home
residents (NHRs) but emerging variants and waning immunity challenge vaccine …

Background/Objectives: This retrospective cohort study evaluated the relative vaccine
effectiveness (rVE) of two bivalent (original/Omicron BA. 4/BA. 5) vaccines mRNA-1273.222 …

We estimated the dynamics of the neutralizing response against XBB sublineages and T cell
response in persons with HIV (PWH) with previous AIDS and/or CD4< 200/mm3 receiving …

To date, SARS-CoV-2 has infected more than 1.6 million US nursing home (NH) residents
and killed more than 160,000 1. Vaccination plays a vital role in preventing SARS-CoV-2 …

Background: The COVID-19 pandemic has greatly affected nursing home residents (NHRs),
a vulnerable group with high rates of illness and death. While vaccination is essential for …

To date, SARS-CoV-2 has infected more than 1.6 million US nursing home (NH) residents
and killed more than 160,000. 1 Vaccination plays a vital role in preventing SARS-CoV-2 …

According to the WHO, the proportion of the world's population aged over 60 years will
almost double, from 12% to 22%, between 2015–2050. 1 This statistic underscores the need …