If you received the Johnson & Johnson/Janssen COVID-19 vaccine, your risk of having a blood clot is also very low and that risk will decrease over time.
Contact your healthcare provider and seek medical treatment urgently if you develop any of the following symptoms:
- Severe headache
- Backache
- New neurologic symptoms
- Severe abdominal pain
- Shortness of breath
- Leg swelling
- Tiny red spots on the skin (petechiae)
- New or easy bruising
If you have any adverse events after vaccination, report them to v-safe and the Vaccine Adverse Event Reporting System.