how long can a stomach bug last
The length of symptoms depends on a few different factors. If you are worried, I would recommend taking your son to his pediatrician. In general, a stomach virus lasts about 7-10 days. This is for the classic virus infection--or as its medically known a viral gastroenteritis or viral gastritis. We normally except the course to be a sudden onset of symptoms, with a peak of symptoms at 2-3 days.