Results are reassuring
Results from these monitoring efforts are reassuring. Some people have no side effects. Many people have reported mild side effects after COVID-19 vaccination, like
- pain or swelling at the injection site,
- a headache, chills,
- or fever.
These reactions are common. A small number of people have had a severe allergic reaction (called “anaphylaxis”) after vaccination, but this is extremely rare. If this occurs, vaccination providers have medicines available to effectively and immediately treat the reaction.
After you get a COVID-19 vaccine, you will be asked to stay for 15–30 minutes so you can be observed in case you have a severe allergic reaction and provided treatment in the rare case it is needed.