Norovirus — once known as Norwalk virus — is highly contagious and often spreads in places like schools, cruise ships and nursing homes, especially during the winter. Sometimes mistaken for a stomach flu, the virus causes bouts of vomiting and diarrhea for a few days. Outbreak in Victoria leads to 9 deaths. July 2013.
print of Norwalk virus, a type of norovirus. Noroviruses are the most common cause of acute gastroenteritis (infection of the stomach and intestines) in the United States. For more information, visit the NIH Print Exchange at Credit: NIH
TEM of Norovirus (or Norwalk virus), Caliciviridae group. This virus is one of the leading causes of gastroenteritis in the U. It is characterized by nausea, difficulty swallowing, diarrhea, and abdominal pain.