Mar 12, 2025 · The flu is most contagious in the first three to four days after you begin showing symptoms, but waiting at least five to seven days is recommended. Exception: Some people may …

Jun 5, 2024 · How long are you contagious with the flu? You can spread the flu before you feel ill, but you're typically most contagious during the first 3 days of your illness.

Sep 17, 2024 · People with flu are most contagious during the first three days of their illness. Some people, including young children and people with weakened immune systems may be contagious for …

Feb 1, 2026 · How long are you contagious with the flu? Experts say you can spread the virus for five to seven days after symptoms start, sometimes longer for children and adults.

Jan 6, 2026 · Those with flu are most contagious around three days into their infection, according to the Centers for Disease Control and Prevention, but some people, like young children and those with...

Sep 10, 2025 · The flu can be contagious before symptoms even appear, unknowingly spreading the virus to others. Find out how long the flu stays contagious.

Nov 6, 2025 · People with the flu are most contagious in the three to four days after they develop symptoms, the CDC says. Most people can infect other people up to a day before their symptoms …