Influenza (flu)
Influenza (flu) is a contagious respiratory illness caused by influenza viruses. It can cause mild to severe illness. Serious outcomes of flu infection can result in hospitalization or death. Some people, such as older people, young children, and people with certain health conditions, are at high risk of serious flu complications. There are two main types of influenza (flu) virus: Types A and B. The influenza A and B viruses that routinely spread in people (human influenza viruses) are responsible for seasonal flu epidemics each year.
The best way to prevent flu is by getting vaccinated each year.
Seasonal Influenza (Flu) Information
Centers for Disease Control new window (CDC)
Montgomery County Department of Health and Human Services new window
General Information
- Flu & You (PDF,
) (CDC) - About Influenza (CDC)
- Prevention new window (CDC)
- How Flu Spreads new window (CDC)
- Treatment of Flu new window (CDC)
- A Strong Defense Against the Flu (PDF, ) (CDC)
- Poster: Everyday Preventive Actions (PDF, ) (CDC)
- Similarities and Differences between Flu and COVID-19 new window (CDC)
- People at Increased Risk for Flu Complications new window (CDC)
Information for Parents
Flu Information for parents with young Children new window (CDC)
Poster: The Flu: A Guide for Parents (PDF, ) (CDC)
Information for School Staff
Information for Schools and Childcare Providers new window (CDC)
Cleaning and Disinfecting Schools (PDF, ) (CDC)
Información en Español
- La Influenza y Usted (PDF, ) (CDC)
- Informacion acerca de la influenza new window (CDC)
- Como prevenir la influenza estacional new window (CDC)
- Una Fuerte Defensa Contra la Influenza (PDF, ) (CDC)
- Tratamiento de la influenza new window (CDC)
- Influenza Estacional new window (Gripe)
- Similitudes y diferencias entre influenza y COVID-19 new window (CDC)
- Personas con mayor riesgo de presentar complicaciones por la influenza new window (CDC)
- Conceptos erroneos acerca de la influenza estacional y las vacunas contra la influenza new window (CDC)