Pediatr Infect Dis J
May 2011
Background: Brazil initiated universal immunization of infants with the G1P[8] human rotavirus (RV) vaccine in March 2006. This study evaluated vaccine effectiveness (VE) against severe rotavirus gastroenteritis (RVGE) hospitalizations.
Methods: Matched case-control study conducted at 4 hospitals in Belém from May 2008 to May 2009.