| group b rotaviruses similar to strain cal-1, have been circulating in western india since 1993. | generally, group a rotaviruses are the most common cause of paediatric diarrhoea. however, group b rotavirus, adult diarrhoea rotavirus (adrv), was found to be involved in epidemics of severe gastroenteritis in several areas of china during 1982-1983 and had resulted in more than one million cases among adults as well as older children. human group b rotavirus has been rarely reported outside china, but has been detected first from five adults with diarrhoea in kolkata, india during 1997-1998 (s ... | 2004 | 15310177 |