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.
Children may pass the virus for longer than 7 days. Symptoms start 1 to 4 days after the virus enters the body. Information about how long a person is contagious is available at How Flu Spreads.easonal influenza, commonly called âthe flu,â is caused by influenza viruses, which infect the respiratory tract (i.e., the nose, throat, lungs). Unlike many other viral respiratory infections, such as the common cold, the flu can cause severe illness and life-threatening complications in many people.