Current Stomach Bug 2024. The stomach flu (norovirus) is an acute form of gastroenteritis, or inflamed stomach or intestinal lining caused by a virus, bacteria or parasite. According to the oklahoma state department of health, symptoms of the norovirus can last one to three days and include:
Known as the most common stomach bug in the uk, norovirus is highly contagious and can be contracted through contact with an infected person or contaminated. The stomach flu causes vomiting, diarrhea, and queasiness.