Dioxathion - Identification, toxicity, use, water pollution potential, ecological toxicity and regulatory information. Note: See Working with the Information on this Page section below for important notes about this data.
Symptoms of rotavirus â the leading cause of viral gastroenteritis in infants and young children â usually appear one to three days after exposure. But you're contagious even before you develop symptoms, and up to two weeks after you've recovered.
Most of the time, you will become contagious about  24 to 72 hours after contracting the influenza virus and remain that way for up to five days after the onset of symptoms. But children or people with compromised immune systems can be contagious to those around them for up to two weeks.