Flu Information

The timing of flu is very unpredictable and can vary in different parts of the country and from season to season. Most seasonal flu activity typically occurs between October and May. Flu activity most commonly peaks in the United States between December and February.

Centers for Disease Control & Prevention


The Centers for Disease Control and Prevention (CDC) website recommends a yearly flu vaccine for everyone 6 months of age and older as the first and most important step in protecting against this serious disease.

People should begin getting vaccinated soon after flu vaccine becomes available, ideally by October, to ensure that as many people as possible are protected before flu season begins. However, as long as flu viruses are circulating in the community, it's not too late to get vaccinated.

Every Day Prevention

In addition to getting a seasonal flu vaccine if you have not already gotten vaccinated, you can take everyday preventive actions such as staying away from sick people and washing your hands to reduce the spread of germs. If you are sick with flu, stay home from work or school to prevent spreading flu to others. More information can be found on the CDC website.

Vaccine Types

For the 2019-2020 flu season, Frequently Asked Influenza (Flu) Questions: 2019-2020 Season the recommends annual influenza vaccination for everyone 6 months and older with either the inactivated influenza vaccine (IIV) or the recombinant influenza vaccine (RIV).

The nasal spray flu vaccine (live attenuated influenza vaccine or LAIV) should not be used during 2016-2017.There is no preference for one vaccine over another among the recommended, approved injectable influenza vaccines.

If you have questions about which vaccine is best for you, talk to your doctor or other health care professional.

Additional Information

More information about influenza vaccines is available at Preventing Seasonal Flu With Vaccination page.

"Key Facts about Seasonal Flu Vaccine". Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 31 March 2017. Web. 18 April 2017.