A Rotavirus infection causing gastroenteritis is one of the major health concerns throughout the world. Scientists have described seven rotavirus group (A to G). Only groups A, B and C infect humans. Group A, which has multiple strains, causes the majority of childhood infections. Children between the ages of 6 and 24 months are at greatest risk for developing severe disease from rotavirus infection. Rotavirus is transmitted by the fecal-oral route, via contact with contaminated hands, surfaces and objects.