Influenza (Flu)

What is it?

Influenza (flu) is a respiratory illness caused by influenza viruses. They can infect the nose, throat, and sometimes lungs. Flu is more dangerous than the common cold for children. For more information, visit the Influenza webpage at www.cdc.gov.

Brochure

Brochure: English

Fast Facts

Fact Sheet: English

FAQs

FAQ: English

Other Sources

Centers for Disease Control and Prevention

County of San Diego

Contact the San Diego Immunization Unit via e-mail or call (866) 358-2966.

Contact the Epidemiology School Response Team via e-mail or call (619) 692-8636.