Flu Symptoms & Diagnosis
ShareCompartir
Influenza (also known as “flu”) is a contagious respiratory illness caused by influenza viruses. It can cause mild to severe illness, and at times can lead to death. This page provides resources about flu symptoms, complications, and diagnosis.
Additional Resources
Communication Resources
Access communication, education and partner materials!
- Page last reviewed: July 28, 2017
- Page last updated: July 28, 2017
- Content source:
- Centers for Disease Control and Prevention, National Center for Immunization and Respiratory Diseases (NCIRD)
- Page maintained by: Office of the Associate Director for Communication, Digital Media Branch, Division of Public Affairs