Background Influenza vaccines are most effective when the antigens in the vaccine match
those of circulating strains. However, antigens contained in the vaccines do not always match …

Objectives Seniors are particularly vulnerable to complications resulting from influenza
infection. Numerous influenza vaccines are available to immunize US seniors, and practitioners …

Background Clostridium difficile infection (CDI) is the leading cause of infectious nosocomial
diarrhoea but the economic costs of CDI on healthcare systems in the US remain uncertain. …

Background Influenza vaccine efficacy/effectiveness can vary from season to season due in
part to the dominant circulating strains and antigenic matching. This study reviews the …

Background: Influenza is responsible for a significant disease burden annually, especially
in older adults. This study reviews the relative vaccine efficacy or effectiveness (rVE) of high-…

Background Influenza is an important cause of morbidity and mortality among older adults.
Even so, effectiveness of influenza vaccine for older adults has been reported to be lower …

Background Data on COVID-19-induced disruption to routine vaccinations in the South-East
Asia and Western Pacific regions (SEAR/WPR) have been sparse. This study aimed to …

Background The effectiveness of influenza vaccination in reducing influenza-related
hospitalizations among patients with COPD is not well described, and influenza vaccination uptake …

Background/Objectives Despite influenza vaccination programs in various jurisdictions,
seasonal influenza vaccine (SIV) uptake remains suboptimal among older people (≥65years old…

Background We examined whether a high-dose inactivated influenza vaccine was more
efficacious in preventing hospitalizations than a standard-dose vaccine in the Veterans Health …