What if I have an adverse reaction to the vaccine?

If you have signs of a severe allergic reaction (such as hives, swelling of the face or throat, difficulty breathing, a fast heartbeat, or dizziness), call 911 immediately or go to the nearest hospital. For other concerns, contact a health care provider.

Adverse reactions should also be reported to the Vaccine Adverse Event Reporting System (VAERS). Your health care provider will usually file this report. Visit: https://vaers.hhs.gov/ or call 800-822-7967. VAERS is only for reporting reactions, and VAERS staff members do not give medical advice.

Vaccine Adverse Event Reporting System

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1. What is mpox (monkeypox)?
2. Is mpox deadly?
3. Who is at risk for mpox?
4. What are the symptoms of mpox?
5. How is mpox spread?
6. Should I get vaccinated?
7. Where can I get vaccinated?
8. What are the treatments for mpox?
9. What if I have an adverse reaction to the vaccine?
10. Where can I get tested?