Introduction: High-dose trivalent, inactivated, split-virus influenza vaccine (IIV3-HD) has
been available in the US since 2009 for adults aged≥ 65 years. To better understand how …

A large number of human genes associated with viral infections contain single nucleotide
polymorphisms (SNPs), which represent a genetic variation caused by the change of a …

Older adults (≥ 65 years of age) bear a significant burden of severe disease and mortality
associated with influenza, despite relatively high annual vaccination coverage and …

Introduction Annual influenza vaccination is recommended for older adults, but evidence
regarding the impact of repeated vaccination has been inconclusive. Aim We investigated …

Although valuable and effective in decreasing disease burden, influenza vaccination has
low rates of efficacy, especially in those at most risk. Studies have shown that acute exercise …

Background We compared effects of prior vaccination and added or lost protection from
current season vaccination among those previously vaccinated. Methods Our analysis …

Epidemiological studies suggest that humans who receive repeated annual immunization
with influenza vaccine are less well protected against influenza than those who receive …

Background Recent studies have demonstrated the possibility of negative associations
between prior influenza vaccines and subsequent influenza vaccine effectiveness (VE) …

Background: Influenza vaccine uptake among healthcare workers is crucial for preventing
influenza infections, yet its effectiveness needs further investigation. Objectives: This …

Introduction The objective of our study was to estimate the influenza vaccine effectiveness
for 2023/24 epidemic of co-circulating influenza A (H3N2) and B (Victoria) viruses in Bei**g …