Abstract Emerging SARS-CoV-2 Omicron subvariants continue to disrupt COVID-19 vaccine
efficacy through multiple immune mechanisms including neutralizing antibody evasion. We …

The emergence of the highly divergent SARS-CoV-2 Omicron variant has jeopardized the
efficacy of vaccines based on the ancestral spike. The bivalent COVID-19 mRNA booster …

The emergence of highly transmissible severe acute respiratory syndrome coronavirus 2
(SARS-CoV-2) variants of concern (VOCs) that are resistant to the current COVID-19 …

The sustained epidemic of Omicron subvariants of severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) is a worldwide concern, and older adults are at high risk. We …

The impacts of the COVID-19 pandemic led to the development of several effective SARS-
CoV-2 vaccines. However, waning vaccine efficacy as well as the antigenic drift of SARS …

Background Data on the effectiveness of BA. 4/5 bivalent vaccine stratified by age and prior
infection are lacking. Methods This test-negative study used data from individuals≥ 5 years …

Effectiveness of Monovalent mRNA Vaccines Against COVID-19–Associated
Hospitalization Among Immunocompetent Adults During BA.1/BA.2 and BA.4/BA.5 …

Background Continuous evolution of severe acute respiratory syndrome coronavirus 2
(SARS-CoV-2) outpaces monovalent vaccine cross-protection to new viral variants …

Despite the numerous preventive and curative measures in vogue post the onset of the
recent pandemic, the novel SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) …

Revaccination after receipt of a hematopoietic cell transplant (HCT) or cellular therapies is a
pillar of patient supportive care, with the potential to reduce morbidity and mortality linked to …