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1 Frequently Asked Questions with the term “child”

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Where can I get a vaccination appointment for COMIRNATY?

You can get a vaccine at a healthcare provider’s office, pharmacies, some hospitals, and health clinics throughout the United States.

Talk to your doctor and click here to find and schedule a COVID-19 shot, if eligible.

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Why is it important to stay up to date with COVID‑19 vaccination?
According to the CDC, the protection you get against COVID‑19 from previous vaccination or infection decreases as time goes on and as the virus that causes COVID‑19 evolves. This can leave you at increased risk for COVID-19. That's why getting a 2025‑2026 COVID‑19 shot is one of the best ways for you and your child to help protect yourselves. To learn more about how our vaccine is given, see our Dosing Guide.

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What can be done to help prevent COVID-19?

Here are some tips for helping prevent COVID-19:

  • Wash your hands or wipe surfaces
  • Open windows to allow fresh air, use an air purifier or go outdoors
  • Avoid people who are sick when possible

Visit CDC.gov to learn more.

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What should you tell the vaccination provider before you or your child gets COMIRNATY?

Tell your vaccination provider about all of your medical conditions, including if you:

  • Have any allergies
  • Had a severe allergic reaction after receiving a previous dose of any COVID-19 vaccine
  • Have had myocarditis (inflammation of the heart muscle) or pericarditis (inflammation of the lining outside the heart)
  • Have a fever
  • Have a bleeding disorder or are on a blood thinner
  • Are immunocompromised or are on a medicine that affects your immune system
  • Are pregnant, plan to become pregnant, or are breastfeeding
  • Have received another COVID‑19 vaccine
  • Have ever fainted in association with an injection

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How do mRNA vaccines like COMIRNATY work?

COVID-19 vaccines help the body develop an immune response to the virus that causes COVID-19 without having to get the infection. mRNA vaccines provide instructions to the body to make a protein found on the surface of the virus. This trains the immune system to recognize the virus that causes COVID-19 and trigger an immune response to help fight the virus in the future.

Learn more about how COMIRNATY works.

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Why was the formula of COMIRNATY updated?

The formula of COMIRNATY was updated as recommended by the FDA to closely match recently circulating strains of the virus that cause COVID-19.

Updated formulas of COMIRNATY are made using the same process as previous formulas, with the difference only in the mRNA, which encodes the viral spike protein.

Learn more about how COMIRNATY works.

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Can COMIRNATY make you sick with COVID-19?
COMIRNATY does not contain SARS-CoV-2, the virus that causes COVID-19. COMIRNATY cannot give you COVID-19.

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Can COVID-19 vaccines alter my DNA?
COVID-19 vaccines do not change or interact with your DNA in any way.

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Has COMIRNATY been studied?
Yes, multiple ongoing clinical trials contributed to the approval of COMIRNATY.

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What is known about the safety of COMIRNATY?

COMIRNATY has been tested in multiple clinical trials, with a demonstrated safety profile; Pfizer is committed to ongoing safety monitoring. Serious risks can include severe allergic reactions, myocarditis (inflammation of the heart muscle), or pericarditis (inflammation of the lining outside the heart). Some people may faint after vaccination, and people with weakened immune systems may have a reduced immune response.

Common side effects in people 5 years of age and older include pain, swelling or redness where the shot is given, tiredness (fatigue), headaches, chills, muscle and/or joint pain, and fever.

Other side effects reported: nausea, feeling unwell, swollen lymph nodes (lymphadenopathy), decreased appetite, diarrhea, vomiting, dizziness, and febrile seizures (convulsions during a fever) in children 5 through 11 years of age. Learn more about safety.

These may not be all the possible side effects of COMIRNATY. Ask your healthcare provider about any side effects that concern you.

The CDC, FDA, and other federal agencies continue to rigorously monitor the safety of COVID-19 vaccines, including COMIRNATY, and share information with the public as it becomes available. Learn more from the CDC.

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Who should get COMIRNATY?

COMIRNATY is approved for use in individuals who are 65 years of age and older, or 5 years through 64 years of age with at least one underlying condition that puts them at high risk for severe outcomes from COVID-19.

Talk to your doctor and click here to find and schedule a COVID-19 shot, if eligible.

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Who should NOT get COMIRNATY?
You should NOT get COMIRNATY if you had a severe allergic reaction after a previous dose of any COMIRNATY vaccine or to any ingredients in this vaccine.

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