Side Effects of This Vaccine

Along with its needed effects, a vaccine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Get emergency help immediately if any of the following side effects occur:

Symptoms of allergic reactions

Difficulty in breathing or swallowing; hives; itching (especially of feet or hands); reddening of skin (especially around ears); swelling of eyes, face, or inside of nose; unusual tiredness or weakness (sudden and severe)

Check with your doctor immediately if the following side effect occurs:

Rare

Convulsions (seizures)

Other side effects may occur that usually do not need medical attention. However, check with your doctor if any of the following side effects continue or are bothersome:

More common

Fever of up to 102 °F (39 °C) (usually lasts less than 48 hours); irritability; loss of appetite; lack of interest; redness at place of injection; reduced physical activity; tenderness at place of injection; tiredness

Less common

Diarrhea; fever over 102 °F (39 °C) (usually lasts less than 48 hours); hard lump, swelling, or warm feeling at place of injection; skin rash; vomiting

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.