Porcine rotavirus A (PRV-A) is a double-stranded RNA viruses roughly 3.3 kb in length. PRV-A belongs to the family Reoviridae, Sedoreovirinae subfamily, and Rotavirus genus. First identified in 1973, rotaviruses cause acute viral gastroenteritis in young animals and children. In pigs, PRV-A infections have been confirmed worldwide with and without the association of diarrhea. The virus is transmitted by the fecal–oral route. Prevalence rates vary from 3.3-67.3% without evidence of seasonality.