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  1. How does the flu vaccine work? Tran: The flu vaccine uses a deactivated or weakened version of the influenza virus to train your body to recognize an antigen (protein) on the surface of the virus. This causes your immune system to develop antibodies that will fight the flu.

  2. Mar 22, 2024 · On This Page. Flu Vaccination. Flu Vaccine Options. Vaccine Effectiveness. Vaccine Benefits. Vaccine Match. Vaccine Side Effects. Vaccine Supply and Distribution. Flu Vaccination. Why should people get vaccinated against flu? Influenza (flu) is a potentially serious disease that can lead to hospitalization and sometimes even death.

  3. Nov 6, 2019 · Vaccines work by “trainingyour bodys immune system. There are two types of vaccines: inactivated, and live/attenuated. Inactivated vaccines are essentially the protein coat of whatever you’re trying to vaccinate against. Think of it as what the bacteria or virus is “wearing.”

  4. By Mayo Clinic Staff. This year's seasonal flu vaccines each provide protection against four of the influenza viruses expected to be most common during this flu season. High-dose flu vaccines will be available for adults age 65 and older. Vaccines will be offered as an injection and as a nasal spray.

  5. Oct 18, 2022 · Most flu vaccines, whether they're administered through a shot in the arm or through a nasal spray, are made using an egg-based process. The virus is injected into fertilized chicken eggs, where it incubates and replicates for several days. This means a minute amount of egg protein may be in the vaccine.

  6. Oct 16, 2020 · The flu shot works by introducing your body to antigens, which produces antibodies that can help your immune system fight off a flu infection. The flu shot is made of...

  7. Feb 29, 2024 · Print. A table with adjusted vaccine effectiveness estimates for flu seasons from 2004-2024 is available here. Flu Vaccines Key Resources. Vaccine Benefits. About Flu Vaccines. Get Vaccinated. CDC Seasonal Flu Vaccine Effectiveness Studies. CDC conducts studies each flu season to measure the benefits of seasonal flu vaccination.

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