What Are The Symptoms Of The Stomach Bug 2025 In Usa. The main symptom of gastroenteritis is diarrhea, which may be accompanied by nausea and vomiting. Norovirus, sometimes referred to as a stomach flu or stomach bug, is a common virus that's highly contagious and spreads through tiny particles of feces or.

According to cdc data, the northeast region of the u.s. The main symptom of gastroenteritis is diarrhea, which may be accompanied by nausea and vomiting.