Elderly residents of long-term care facilities (LTCFs) have long been underrepresented in
studies on vaccine efficacy, particularly in light of currently emerging variants of concern …

Background Residents of nursing homes are one of the most vulnerable groups during the
severe acute syndrome coronavirus 2 (SARS-CoV-2) pandemic. The aim of this study was to …

The elderly residing in long-term care facilities (LTCFs) are a group at high risk for COVID-
19. Hence, monitoring of the vaccine-based immunity has a pivotal role in identifying …

Background SARS-CoV-2 vaccination is the most effective strategy to protect older residents
of long-term care facilities (LTCF) against severe COVID-19, but primary vaccine responses …

Although the safety and efficacy of COVID-19 vaccines in older people are critical to their
success, little is known about their immunogenicity among elderly residents of long-term …

In this prospective observational cohort study we analyzed cellular and serological immune
response parameters against SARS-CoV-2 and current variants of concern (VOC) in 147 …

Despite the high efficacy of the BNT162b2 vaccine in the general population, data on its
immunogenicity among frail elderly individuals are limited. Recently, levels of anti-SARS …

Background Vaccination reduces COVID-19-related hospitalization among older adults.
However, how SARS-CoV-2 infection and vaccine regimens affect vaccine-elicited immunity …

Objectives Elderly are an understudied, high-risk group vulnerable to severe COVID-19. We
comprehensively analyzed the durability of humoral and cellular immune responses after …

Background Older adults, particularly in long-term care facilities (LTCF), remain at
considerable risk from SARS-CoV-2. Data on the protective effect and mechanisms of hybrid …