<prompt> The viruses causing gastroenteritis are -a Rotavirusb Norwalk virusc Adenovirusd Hepatadenoviruse Enterovirusbcdeabcdacdeabce  <response>: Viruses that are important causes of gastrointestinal infection are - rotaviruses , entericadenoviruses especially, serotype 40 41 Q, noroviruses, sapoviruses, astroviruses possiblytoroviruses - Fields virology Viruses causing diarrhoea RotavirusesQAstrovirusesQAdenovirusesQCalcivi rusesCoronavirusesNorwalk group virusesQEnteroviruses Viral infections causing diarrhoea Current Diagnosis Treatment in Gastroenterology Rotavirus Norwalk virus are the two most common agents in viral diarrhoea in children adults,respectivelyRotavirus : The disease occur primarily in children aged 3-15 months , with infection lesscommon after 2 years of age. Adult can develop mild infection. Typically a childe developsvomiting, followed by profuse, watery diarrhoea. Dehydration may develop rapidly in chidren contributes significantly to the sererity of the illness. Rotashieldj a live oral vaccine initiallyapproved for the prevention of rotavirus infection, was withdrawm from the market because of a possible increased risk of intussusceptionNorwalk virus : The clinical spectrum of disease is varied, although all cases are mild. The duration of illness is usually 24-48 hours 