U.S. doctors online nowAsk doctors free
A 30-year-old member asked:

How long is the average incubation period for the flu?

1 doctor answer2 doctors weighed in
Dr. Henry Selke
Internal Medicine - Infectious Disease 17 years experience
...: The incubation period for the flu is between 1-4 days. This means that people can pass along the flu to others before they even know they are sick, as well spread the flu to others for 5-7 days after becoming sick. Washing your hands often and getting the flu vaccine are ways you can protect yourself from the flu.
Last updated Dec 28, 2017
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits - just $39!
50% off with $15/month membership


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.