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  1. While vaccine effectiveness (VE) can vary, recent studies show that flu vaccination reduces the risk of flu illness by between 40% and 60% among the overall population during seasons when most circulating flu viruses are well-matched to those used to make flu vaccines. In general, current flu vaccines tend to work better against influenza B and ...

  2. Reviews of past studies have found that the flu vaccine lowers the risk of flu illness by 40% to 60% when the vaccine matches the spreading flu viruses. Even when the vaccine doesn't completely prevent the flu, it may lessen the severity of your illness.

  3. 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.

  4. How does the flu vaccine work? The vaccine contains elements of the dead influenza virus so the immune system can respond to those specific proteins to make antibodies. When the immune system sees the virus in the future, it ramps up the antibody response to kill it quicker. What if I always seem to get sick after getting the flu shot?

  5. Nov 13, 2021 · 2 min read. The flu vaccine is the best way to protect yourself from the influenza virus. You should get one every year, unless you have a medical reason not to. Flu season can begin as early as...

  6. Jan 10, 2024 · Objectives: Differentiate between the various influenza virus types (A, B, and C) to tailor vaccination strategies based on their distinct characteristics and transmission patterns. Assess the absolute and relative contraindications of the influenza vaccine.

  7. 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. Because the flu shot is made up of...

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