Viral Gastroenteritis Incubation Period: Symptoms & Timeline

The incubation period for a viral gastroenteritis (stomach flu, puke bug) can vary depending on the specific virus. In general, symptoms of viral gastroenteritis can develop within a few hours to a few days after exposure to the virus. The most common cause of viral gastroenteritis, norovirus, typically has an incubation period of 12 to 48 hours.