Gastroenteritis can be caused by viral, bacterial, or parasitic infections. Common routes of infection include: * Food * Contaminated water * Contact with an infected person * Unwashed hands Fifty to seventy percent of cases of gastroenteritis in adults are caused by noroviruses (genus Norovirus, family Caliciviridae). This virus is highly contagious and spreads rapidly. Norovirus is the most common cause of gastroenteritis in the United States.
Gastroenterocolitis
Enterocolitis
Proctocolitis
Gastroenteritis
Ischemic colitis
Ileitis
Colitis
Enteritis