Stomach Flu 2024 In Gazette. The stomach flu causes vomiting, diarrhea, and queasiness. Outbreaks of norovirus, which causes vomiting and diarrhea, are on the rise.

Gastroenteritis can be caused by viruses, most commonly norovirus, bacteria and parasites. While covid cases continue to drop in the u.s., outbreaks of another virus — stomach flu — are ramping up, the centers for disease control and prevention says.