Protection against spread appeared strongest within 6 months of vaccination, while exposed vaccinated contacts showed no measurable reduction in infection risk.
A retrospective cohort study of more than 520,000 hospitalized patients found no clinically meaningful improvement in deterioration or mortality with early treatment targeting community-acquired pneumonia.
A large English cohort study found influenza hospitalization more than doubled the short-term risk of new-onset diabetes, with prediabetes and critical care admission among the strongest predictors.