All you need to know about the Norovirus:13 cases of Norovirus infection identified in Kerala Kumar Jeetendra | November 13, 2021 Norovirus also called as vomiting bug, is a stomach bug that causes vomiting and diarrhoea. It can be very unpleasant, but usually goes away in about 2 days.Kerala has been put on alert after at least 13 cases of norovirus have been recorded in Wayanad district.The infection was reported in some 13 students of a …