Like any vaccine, COVID-19 vaccines can cause mild side effects, such as a low-grade fever or pain or redness at the injection site. Most reactions to vaccines are mild and go away within a few days on their own. More serious or long-lasting side effects to vaccines are possible but extremely rare. Vaccines are continually monitored to detect rare adverse events.

Reported side effects to COVID-19 vaccines have mostly been mild to moderate and short-lasting (1-3 days). They include: fever or chills, tiredness or fatigue, headache, muscle pain, diarrhoea, feeling like throwing up, and pain/soreness/redness at the injection site.

Very few people have any really bad reactions to the COVID-19 vaccination - and they can be treated.

Contact your health care provider if:

- The pain where you got the jab gets worse and not better after a day.

- Other side effects do not go away in a few days.

- You are worried by pain in your chest or head, or you feel faint or short of breath.


You can report serious side effects (or adverse events) by:

- Visiting any health facility

-  Using the MedSafety app https://medsafety.sahpra.org.za/

- Emailling AEFI@health.gov.za