How do flu vaccines work in the body?
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How do flu vaccines work in the body?
How do flu vaccines work? Flu vaccines cause antibodies to develop in the body about two weeks after vaccination. These antibodies provide protection against infection with circulating influenza viruses.
Is the flu vaccine a protein vaccine?
Although most influenza vaccines are produced using egg proteins, they are still recommended as safe for people who have severe egg allergies, as no increased risk of allergic reaction to the egg-based vaccines has been shown for people with egg allergies.
Can you get sick from the flu shot?
The most common side effects from flu shots are soreness, redness, tenderness or swelling where the shot was given. Low-grade fever, headache and muscle aches also may occur. If these reactions occur, they usually begin soon after vaccination and last 1-2 days.
Does the Covid vaccine contain egg?
Do the COVID-19 vaccines contain egg and are they safe to have? Neither the Pfizer/BioNTech, AstraZeneca, Moderna or Janssen COVID-19 vaccine contain any egg proteins and none of the vaccines are contraindicated in egg allergy.
Is flu shot necessary?
While it’s especially important for people who have a chronic illness to get the flu shot, anyone — even healthy folks — can benefit from being vaccinated. Current CDC guidelines recommend yearly vaccination against influenza for everyone older than 6 months of age, including pregnant women.
Is the flu shot a live virus?
Flu vaccines given with a needle (i.e., flu shots) are made with either inactivated (killed) viruses, or with only a single protein from the flu virus. The nasal spray vaccine contains live viruses that are attenuated (weakened) so that they will not cause illness.
What are the negatives of getting a flu shot?
However, possible side effects for the flu shot are typically mild, such as soreness, redness or swelling where the shot was given, fever, aches or other minor symptoms. If these minor side effects occur, it is typically soon after the shot is administered, and symptoms last for up to 2 days.