Rotavirus morbidity and mortality in children in Brazil

OBJECTIVE: To study the epidemiology of rotavirus and estimate rotavirus-associated morbidity and mortality in children<or=5 years of age in Brazil in 2004 before introducing the rotavirus vaccine in Brazil's National Immunization Program (Programa Nacional de Imunizações, PNI). METHODS: To estimate rotavirus morbidity, published studies (1999-2006) addressing incidence of acute diarrhea among children<or=5 years of age and frequency of rotavirus infection among children with diarrhea in Brazil were reviewed. Diarrhea episodes were divided into three categories of severity by level of care: mild cases requiring only home-based care; moderate cases requiring a visit to an outpatient healthcare facility; and severe cases requiring hospitalization. To estimate rotavirus mortality, information on the number of registered deaths from diarrhea in children