Objectives Summary evidence of influenza vaccine effectiveness (IVE) against hospitalized
influenza is lacking. We conducted a meta-analysis of studies reporting IVE against …

Annual seasonal influenza epidemics of variable severity result in significant morbidity and
mortality in the United States (US) and worldwide. In temperate climate countries, including …

Abstract Background The Ad26. COV2. S vaccine is a recombinant, replication-incompetent
human adenovirus type 26 vector encoding full-length severe acute respiratory syndrome …

Background The estimation of influenza-associated excess mortality in countries can help to
improve estimates of the global mortality burden attributable to influenza virus infections. We …

Background We investigated the effect of influenza vaccination on disease severity in adults
hospitalized with laboratory-confirmed influenza during 2013− 14, a season in which …

Tropical countries are experiencing a substantial rise in type 2 diabetes, which is often
undiagnosed or poorly controlled. Since diabetes is a risk factor for many infectious …

Background Little is known about inactivated influenza vaccine effectiveness (IVE) in
preventing very severe disease, including influenza-associated intensive care unit (ICU) …

Sterilising immunity that blocks infection for life, and thus prevents illness after infection, is
the ultimate goal for vaccines. Neither influenza infection nor vaccination provide sterilising …

Background. No studies have examined the effectiveness of influenza vaccine against
intensive care unit (ICU) admission associated with influenza virus infection among children …

Background We examined the influence of some factors on seasonal influenza vaccine
effectiveness (VE) from test-negative design (TND) studies. Methods We systematically …