Sars-cov-2 (covid-19) mrna-1273 (6m-5y bivalent booster) vaccine Side Effects

Applies to sars-cov-2 (covid-19) mrna-1273 (6m-5y bivalent booster) vaccine: intramuscular suspension.

Get emergency medical help if you have signs of an allergic reaction: hives, rash; dizziness, weakness, fast heartbeats; difficult breathing; swelling of your face, lips, tongue, or throat.

Your vaccination provider may want to watch you for a short time after your shot, to make sure you don't have an allergic reaction. You will be treated quickly if you have a reaction right after you receive the vaccine.

You should not receive this vaccine if the first shot of COVID-19 vaccine caused an allergic reaction. Your doctor or vaccination provider will determine if you can safely receive this vaccine.

Not all possible side effects are known. Becoming infected with COVID-19 is much more dangerous to your health than receiving this vaccine.

Some people receiving this vaccine had inflammation of the heart muscle or the lining around the heart within a few days after receiving this vaccine, but the risk of this side effect is very low. Seek medical attention right away if you have:

• chest pain;

• shortness of breath; or

• fast or pounding heartbeats or fluttering in your chest.

Common side effects may include:

• fever, chills;

• redness or a hardness and swelling where the shot was given;

• swelling or tenderness under your arm;

• nausea, vomiting;

• feeling tired; or

• headache, muscle pain, joint pain.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

You may also use a smartphone-based program called V-safe to communicate with the Centers for Disease Control and Prevention (CDC) about any health problems you have after receiving a COVID-19 vaccine: www.cdc.gov/vsafe.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.

Medical Disclaimer