(The presence of the CDC logo and CDC content on this page should not be construed to imply endorsement by the US Government of any commercial products or services, or to replace the advice of a medical professional. The mark “CDC” is licensed under authority of the PHS.)
- Q Which people are most vulnerable to the flu?
- Q How does the flu affect the body?
- Q When is the flu considered to be contagious?
- Q How does the CDC monitor antiviral resistance during flu season?
- Q Is the flu serious?
- Q When should I call my doctor if I have diabetes and the flu?