Rotaviruses and Rotavirus Vaccines: Current Topics in Microbiology and Immunology - Hardcoverby Connor Riley (Editor) Rotavirus is a genus of double stranded RNA viruses in the family Reoviridae. It is the most common cause of diarrhea and other intestinal symptoms. It is contagious and most commonly affects infants and young children across the world. Some common symptoms of rotavirus are fever, vomiting, and abdominal pain followed by diarrhea. It causes inflammation in the stomach and intestines. There is no treatment for a rotavirus