how long am i contagious with stomach flu
You can be contagious from a few days up to two weeks or more, depending on which virus is causing your stomach flu (gastroenteritis). A number of viruses can cause gastroenteritis, including noroviruses and rotaviruses.
What is the incubation period of the stomach flu (norovirus and others)? How long is a person contagious after having the stomach flu (stomach virus)? (What is the contagious period for norovirus and others?) Answer: A person is still contagious for at least 3 days after symptoms have stopped. A person is contagious starting from the moment they start to feel sick and possibly even a little bit before that. In one study, Noroviruses were detected in the stool 15 hours after the people ingested the norovirus1. Usually symptoms don't start until 24-72 hours after ingestion (but can take longer).