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Comirnaty (2026-2027) PF (cvx 310) (2026-2027)
Generic name: COVID-19 (5y-11y) vaccine, Comirnaty (2026-2027)
Brand names: Comirnaty (2026-2027) PF (cvx 310)
What is the COVID-19 vaccine?
COVID-19 is a serious disease caused by a coronavirus called SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus 2). COVID-19 spreads from person to person through the air.
COVID-19 can affect your lungs or other organs. Symptoms can be mild or serious and include Fever, chills, cough, sore throat, shortness of breath, tiredness, body aches, headache, loss of taste or smell, runny or stuffy nose, Nausea, vomiting, or diarrhea.
Comirnaty vaccine is used to prevent COVID-19 in children who have never been vaccinated before or who have already received a COVID-19 vaccine.
The Comirnaty vaccine is used to prevent COVID-19 in children 5 to 11 years old at high risk for severe COVID-19.
COVID-19 vaccine does not contain coronavirus and cannot give your child COVID-19. This vaccine will not treat an active COVID-19 infection.
Like any vaccine, COVID-19 vaccine may not provide protection in every person.
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How is this vaccine given?
Read all vaccine information sheets provided to you.
Comirnaty COVID-19 vaccine is given as an injection into a muscle.
Comirnaty COVID-19 vaccine in children 5 to 11 years old is given:
- in unvaccinated children: a single dose of Comirnaty COVID-19 vaccine.
- in children who have already received a dose of any COVID-19 vaccine: a single dose of Comirnaty COVID-19 vaccine is given at least 2 months after the last dose of any COVID-19 vaccine.
The doctor or vaccination provider will determine whether an immunocompromised child needs additional doses.
Keep using infection control methods when your child is in public or around others who may not have been vaccinated. This includes social distancing, hand-washing, using protective face covering, disinfecting surfaces you touch a lot, and not sharing personal items with others.
Receiving a COVID-19 vaccine will not cause your child to test positive on a coronavirus test. However, once the body develops immunity to COVID-19, your child could test positive on an antibody test (a test to detect immunity in the body from previous exposure to coronavirus).
It is not known how long this vaccine will protect your child from infection with COVID-19. It also is not known how long immunity will last in a person who's been infected with and recovered from COVID-19. COVID-19 vaccine is still being studied and all of its risks are not yet known. Updated federal public health recommendations may be found at https://www.cdc.gov/covid/index.html
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Warnings
Becoming infected with COVID-19 may pose a greater risk to your child's health than getting this vaccine.
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Before taking this medicine
Your child should not get this vaccine if they have ever had a severe allergic reaction to Comirnaty, Pfizer COVID-19 vaccine, or if they have or have ever had:
- an allergy to any ingredients in this vaccine.
If your child is infected with COVID-19, is waiting for test results, or has been exposed to someone with COVID-19: your child may need to wait to receive this vaccine until they have no symptoms and/or the required quarantine period is over. Getting this vaccine will not make your child less contagious to others if they are infected with COVID-19 but do not have symptoms.
Ask your child's doctor if you are unsure about any COVID-19 treatments your child has received.
Tell the vaccination provider if your child:
- has any allergies;
- has had inflammation in or around the heart (myocarditis or pericarditis);
- has a fever;
- has bleeding problems or is taking a blood thinner;
- has a weak immune system due to a disease or from certain medicines (this vaccine may not work as well if your child is immunosuppressed);
- has received any other COVID-19 vaccine or is scheduled to receive one; or
- has fainted after getting an injection.
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This vaccine side effects
Get emergency medical help if your child shows signs of an allergic reaction: hives, trouble breathing, swelling of your child's face, lips, tongue, or throat.
The vaccination provider may want to monitor your child for a short time after the injection to ensure your child does not have an allergic reaction or faint. Your child will receive quick treatment if there is a reaction right after getting the vaccine.
Your child should not receive this vaccine if they had an allergic reaction to any dose of COVID-19 vaccine. The doctor or vaccination provider will decide if your child can safely receive this vaccine.
Not all possible side effects are known. Getting infected with COVID-19 may pose a much greater risk to your child's health than receiving this vaccine.
Some people who received this vaccine experienced inflammation of the heart muscle or the lining around the heart after vaccination, usually within the first week. Seek medical help immediately if your child has the following symptoms, especially within the first two weeks:
- chest pain;
- shortness of breath; or
- fast or pounding heartbeats, fluttering in your child's chest.
Common side effects of Comirnaty (2026-2027) PF (cvx 310) may include:
- fever, chills, feeling tired, cool or pale skin;
- stomach pain, nausea, vomiting, diarrhea, loss of appetite;
- dizziness, headache, muscle pain, joint pain;
- pain, redness, or swelling at the injection site; or
- swelling or tenderness under the arm where the injection was given.
This is not a complete list of side effects, and others may occur. Call your child's doctor for medical advice about side effects. You may report vaccine side effects to the US Department of Health and Human Services at 1-800-822-7967.
You may also use a smartphone program called V-safe to share any health problems your child experiences after receiving a COVID-19 vaccine with the Centers for Disease Control and Prevention (CDC): www.cdc.gov/vsafe.
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What happens if I miss a dose?
Contact your vaccination provider or health department if your child does not receive a dose.
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What happens if I overdose?
An overdose of this vaccine is not likely to happen.
Do not receive other vaccines without getting medical advice first.
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What other drugs will affect this vaccine?
Before your child gets this vaccine, inform the vaccination provider about all the other vaccines your child has had. Other medications may impact this vaccine, including prescription and over-the-counter medicines, vitamins, and herbal products. Let your doctor know about all the other medicines your child is taking.
This section was rewritten for readability and reviewed for meaning.
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Content is provided for education and is not medical advice. See our medical disclaimer.