Stomach Flu 2025 News. H5n1 bird flu outbreak, alarming spread of mpox, possible u.s. Norovirus, a highly contagious stomach bug that causes diarrhea and vomiting, is on the rise across the united states.

Also known as the stomach flu or winter vomiting bug, norovirus is. Health experts in bengaluru alarmed over rising stomach flu cases in children amid erratic rain patterns, highlighting poor sanitation and contaminated water as key factors.