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Rotavirus is one of the important causes of severe acute gastroenteritis in infants and young children. There are 2 commercially available forms of rotavirus vaccine. Rotavirus is a live, attenuated monovalent vaccine derived from human strain indicated for prevention of rotavirus gastroenteritis caused by G1, G3, G4 and G9 serotypes; Rotavirus as a live, pentavalent human-bovine reassortant vaccine indicated for prevention of gastreoenteritis caused by rotavirus serotypes G1, G2, G3 and G4. Although presence of porcine cirovirus (PCV1 and PCV2) DNA have been detected in the rotavirus vaccine, current available information shows that there is no evidence that PCV1 or PCV2 poses a safety risk to humans. Exact immunologic mechanism of action is not fully understood although it is known that vaccine viruses replicate in the small intestine and promote active immunity.