Stomach Bug Symptoms 2024. Norovirus is a stomach bug that can cause moderate to intense nausea, vomiting and diarrhoea. According to the oklahoma state department of health, symptoms of the norovirus can last one to three days and include:
Doctors say one of the biggest things to watch out for with these illnesses is. In general, vomiting should resolve within a day or two whereas loose stools can last longer.