Each year, influenza causes substantial mortality and morbidity worldwide. It is important to
understand influenza in the tropics because of the significant burden in the region and its …

Background Despite having influenza vaccination policies and programs, countries in the
Americas underutilize seasonal influenza vaccine, in part because of insufficient evidence …

Background Influenza is a serious vaccine‐preventable disease with high incidence,
hospitalization, and mortality in high‐risk groups. The epidemiology, seasonality, and risk …

Background Global influenza‐associated acute respiratory infections contribute to 3–5
million severe illnesses requiring hospitalization annually, with 90% of hospitalizations …

Seasonal influenza affects a considerable proportion of the global population each year. We
assessed the association between subnational influenza activity and temperature, specific …

Background The risk of hospitalization or death after influenza infection is higher at the
extremes of age and in individuals with comorbidities. We estimated the number of …

Objectives Our objective was to estimate the incidence of influenza‐associated
hospitalizations and in‐hospital deaths in Central American Region. Design and setting We …

Background Influenza is a vaccine preventable disease that causes important morbidity and
mortality worldwide. Estimating the burden of influenza disease is difficult. However, there …

Background We combined hospital-based surveillance and health utilization survey data to
estimate the incidence of respiratory viral infections associated hospitalization among …

O objetivo deste estudo foi o de descrever, com base no relacionamento entre os sistemas
de informação SINAN (Sistema de Informação de Agravos de Notificação) e SIM (Sistema …