Flu vaccines cause antibodies to develop in the body about two weeks after vaccination. These antibodies provide protection against infection with the viruses that are in the vaccine. The seasonal flu vaccine protects against the influenza viruses that research indicates will be most common during the upcoming season. Below are links to more information about the different type of flu vaccines available.
Now's the Time for Flu Vaccination
It is best to get vaccinated before influenza viruses start to spread in your community. However, as long as flu viruses are circulating, vaccination should continue through the flu season. It takes about two weeks after vaccination for antibodies that protect against flu to develop in the body, so act soon! There are many flu vaccine options, but the most important thing is that you get vaccinated. Talk to your doctor about the best flu vaccine option for you.
Note: “Prevention and Control of Seasonal Influenza with Vaccines: Recommendations of the Advisory Committee on Immunization Practices — United States, 2018–19 Influenza Season” has been published. CDC recommends annual influenza vaccination for everyone 6 months and older with any licensed, age-appropriate flu vaccine (IIV, RIV4, or LAIV4) with no preference expressed for any one vaccine over another. Content on this website is being updated to reflect this most recent guidance. More information about the upcoming 2018-2019 flu season is available.