What are the side effects of the pertussis vaccine?

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After getting the pertussis vaccine, you may notice swelling, pain, or redness at the injection site. A child may develop a low-grade fever (101 degrees Fahrenheit or less). Children may lose their appetite, vomit, and act grouchy for one to three days following the pertussis vaccine. In rare cases, your child may develop a severe allergic reaction from the pertussis vaccine. Signs of allergic reaction include difficulty breathing, hives, or swelling about the neck, mouth, or face. If you see this, get emergency aid immediately. Rarely, your child may suffer a seizure after receiving the inoculation. You should seek emergency aid if you see this, or if your child loses consciousness, develops a fever over 105 degrees Fahrenheit, or cries continuously for more than three hours.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.