Stomach Flu Outbreak 2025. A hypercontagious stomach bug — a norovirus — is sweeping across the northeast, causing schools to shutter and citizens to suffer from violent diarrhea and. 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.
As we enter spring, cases of norovirus are beginning to rise, including an outbreak on a cruise ship. Lshtm expert explains why colder temperatures, circulation of less common virus type and changes to testing may be contributing to high norovirus cases.