- H3N2v - Learn about H3N2v and other variant flu viruses
- Flu Vaccine Effectiveness - Learn how vaccine effectiveness is measured
- Vaccine Safety - Learn how flu vaccines are monitored for safety
There are early indications that influenza activity in the United States is beginning to increase. Anyone 6 months of age and older who has not yet gotten their flu vaccine, should get vaccinated now. It takes about two weeks after vaccination for your body to develop an immune response. Flu vaccination is safe and can protect you against flu illness. Find a vaccine.
Influenza (Flu) Topics
Flu Basics
Symptoms, How Flu Spreads, Higher Risk Groups, 2010-2011 Flu Season, 2011-2012 Flu Season…
Prevention
Flu Vaccine Information, Vaccine Safety Information, NIVW, Infection Control…
Treatment/Antiviral Drugs
What to do, Symptoms, Antiviral Drugs…
Health Professionals
Vaccination, Antiviral Drugs, Infection Control, Diagnostic Testing, Patient Education, Clinician Communications and Training…
Free Resources
Printable Materials, Photos, Podcasts, Videos, PSAs, eCards, Badges & Buttons, Articles…
What’s New & Updated!
Diagnosis, Antiviral, Vaccination, Guidelines, Podcast, Resources…
Info for Specific Groups
- People at High Risk Many people don't know if they are at higher risk for flu complications. Learn about your risk for flu.
- People With Asthma Information for people with Asthma.
- People With Diabetes Why vaccination is important for people with diabetes.
- People 65 and Older Vaccination is important this season.
- Pregnant Women Why vaccination is important for pregnant women.
- Parents Advice for parents who want to keep their children healthy.
- Schools & Childcare Providers Information on preventing the flu, common questions and answers, and poster materials for schools.
- Business Information and tools on preventing the flu, workplace–specific guidelines, and printable materials.
- Travelers Influenza vaccine information for travelers.
- Health Care Workers It’s important that all health care workers get vaccinated in order to protect themselves, their families and their patients from influenza.
- Long-term Care FacilitiesConsolidated guidance on influenza outbreak management and prevention.
Other Flu Web sites
Influenza A viruses are found in humans and many different animals, including chickens, pigs...
Flu Activity & Surveillance
CDC collects, compiles and analyzes information on influenza activity year round in the United States.
International Flu
This site provides updates to information on the international flu situation and CDC’s international flu program.
Contact Us:
- Centers for Disease Control and Prevention
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Atlanta, GA 30333 - 800-CDC-INFO
(800-232-4636)
TTY: (888) 232-6348 - New Hours of Operation
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Monday-Friday
Closed Holidays - cdcinfo@cdc.gov





