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"The flu" is a contagious respiratory illness caused by an influenza virus. It can cause mild to severe illness and in some cases can lead to death. Your best defense against the flu is to be vaccinated each year. Key Facts About Seasonal Flu and Seasonal Flu Vaccine. Flu Season can range from October to as late as May.
Anyone ages 6 months and older without a contraindication to influenza vaccine. Certain people should be vaccinated each year either because they are at high risk for developing serious flu-related complications, or because they live with or care for high risk persons.
People who should get vaccinated include:
There are some people who should not be vaccinated without first consulting a physician.These include:
Contact your health-care provider if you have questions regarding influenza or the influenza vaccine.