Is the flu shot the same across the US?

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Is the flu shot the same across the US?

While all influenza vaccines will protect against the same 4 flu viruses, different influenza vaccines are manufactured differently and different preparations have different indications as licensed by the FDA. In particular, each vaccine is licensed for a specific age range.

Where does the US flu vaccine come from?

All commercially available flu vaccines in the United States are made by private sector manufacturers. Different manufacturers use different production technologies, but all flu vaccines meet FDA safety and effectiveness requirements.

Who makes the flu vaccine for the United States?

Influenza Vaccine for the 2021-2022 Season

Manufacturer Total Number of Lots Released by FDA
Fluad Quadrivalent Seqirus, Inc. 24
Fluarix Quadrivalent GlaxoSmithKline Biologicals 43
Flublok Quadrivalent Protein Sciences Corporation 57
Flucelvax Quadrivalent Seqirus, Inc. 59
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What strains are in the 2020 2021 flu vaccine?

For 2020-2021, cell- or recombinant-based vaccines are recommended to contain:

  • A/Hawaii/70/2019 (H1N1)pdm09-like virus (updated)
  • A/Hong Kong/45/2019 (H3N2)-like virus (updated)
  • B/Washington/02/2019 (B/Victoria lineage)-like virus (updated)
  • B/Phuket/3073/2013-like (Yamagata lineage) virus.

How long after flu shot is it effective?

It takes about two weeks after vaccination for antibodies to develop in the body and provide protection against influenza virus infection. That’s why it’s best to get vaccinated before influenza viruses start to spread in your community.

How do they decide what flu vaccine to make?

The influenza viruses in the seasonal flu vaccine are selected each year based on surveillance data indicating which viruses are circulating and forecasts about which viruses are the most likely to circulate during the coming season.

Is the flu shot FDA approved?

The flu vaccines are approved by the U.S. Food and Drug Administration to prevent flu, and they provide important benefits. The Centers for Disease Control and Prevention estimate that during the 2019-20 flu season: 38 million people were ill with flu. 18 million people went to a health care provider for flu.

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Are flu shots FDA approved every year?

Flu viruses can change from year to year, so the vaccine is updated every year to protect against new flu virus strains that are expected to circulate in the United States. The FDA plays a key role in making sure flu vaccines are safe, effective, and of high quality.

What is quadrivalent flu vaccine?

A synthetic vaccine consisting of hemagglutinin (HA) antigens derived from four inactivated influenza viruses, two different influenza type A strains and two different influenza type B strains, with protective immunizing activity.

What are the disadvantages of the 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.

Does the Covid vaccine contain the virus?

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FACT: Because none of the authorized COVID-19 vaccines in the United States contain the live virus that causes COVID-19, the vaccine cannot make you sick with COVID-19. COVID-19 vaccines teach our immune systems how to recognize and fight the virus that causes COVID-19.