Introduction: I propose that influenza vaccine failure be defined as receipt of a properly
stored and administered vaccine with the subsequent development of documented …

We investigated sex as a potential modifier of influenza vaccine effectiveness (VE) between
2010–2011 and 2016–2017 in Canada. Overall VE was 49%(95% confidence interval [CI] …

Importance Some studies have reported negative effects of prior-season influenza
vaccination. Prior-season influenza vaccination effects on vaccine effectiveness (VE) in …

At the beginning of this century, a number of studies suggested that in healthy children,
particularly those< 2 years of age, influenza could have a serious and complicated course …

Despite vaccination programs, influenza still represents a significant disease burden in
Mexico. We conducted an observational, retrospective analysis to better understand the …

Vaccination could be an evolutionary pressure on seasonal influenza if vaccines reduce the
transmission rates of some (“targeted”) strains more than others. In theory, more vaccinated …

El virus de la influenza afecta mundialmente a millones de personas y es responsable de
aproximadamente 500,000 muertes cada año. La principal alternativa de protección es la …

A central goal in ecology and evolution is to explain the mechanisms that determine the
fitness of species. In the context of infectious disease epidemiology, understanding …