Rotavirus infection in a tertiary hospital: laboratory diagnosis and impact of immunization on pediatric hospitalization oleh Luciane Aparecida Pereira, M.Sc., Sonia Mara Raboni, Ph.D., Meri B. Nogueira, Ph.D., Luine R. Vidal, Ph.D., Sergio Monteiro de Almeida, M.Sc., Maria C. Debur, M.Sc., Cristina Cruz, M.Sc.