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Pertussis
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The Vaccine

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General FAQs

  1. I received Tdap a few days ago. Now my arm is red and swollen down to the elbow. What should I do?
    The redness and swelling may be an adverse event caused by your Tdap immunization. Contact your healthcare provider or the IHB. We can help you to get treatment and help you file a Vaccine Adverse Event Report.

  2. My child has a large lump where the DTaP shot was given. Should I take her to our pediatrician?
    DTaP vaccination may cause side effects, such as swelling, redness, pain, and/or warmth where the shot was given. These side effects may last for 1 to 2 days, and usually go away on their own. If you have more questions, contact a IHB healthcare provider and send us a photo of the reaction using our Ask VHC secure messaging.

Adapted from the Immunization Action Coalition (with permission)
and the Centers for Disease Control and Prevention (CDC).