10 A 08.0 ICD - 9 008.61 DiseasesDB 11667 MedlinePlus 000252 eMedicine emerg/401 MeSH D012400 Rotavirus is a genus of double-stranded RNA virus in the family Reoviridae . It is the leading single cause of severe diarrhoea among infants and young children, [ 1 ] and is one of several viruses