Stomach Bug How Long Does It Last 2025. But the recovery can last longer. A severe outbreak of norovirus, the stomach flu, is surging across the united states as it has reached its highest levels for this time of year in over a decade,.

Depending on the type of virus, the stomach bug can be contagious before. Commonly known as the stomach flu, norovirus is a viral infection that leads to gastroenteritis, causing vomiting and diarrhea.