When you’re first contagious: When you’re no longer contagious: Flu: 1 day before symptoms start: 5-7 days after you get sick with symptoms: Cold: 1-2 days before symptoms startAuthor: Elea Carey And Stephanie Watson.
Mar 08, 2018 · Although the typical incubation period for influenza is about one to four days, some adults can be contagious from about one day before onset of symptoms for up to two weeks. Other people who develop complications, such as pneumonia, may extend the contagious period for a week or two.
The common cold contagious period may begin two to three days before symptoms appear and lasts about two weeks. As explained in this eMedTV article, the peak of the common cold contagious period usually occurs between day 2 and day 4 of the cold.Author: Arthur Schoenstadt, MD.
The contagious period for a cold lasts about three to four days into the illness. As a general rule, people with a cold are most contagious about three days after their initial exposure to the virus. For more information on colds, influenza and related topics, check out the links below.Author: Julia Layton.