There were only 2 individuals out of thousands of vaccine recipients who developed an allergic reaction to the vaccine. Both individuals carried a history of severe allergies and all allergic symptoms resolved with medical treatment. If you have a history of severe allergies or anaphylaxis to medications, you should consult with you physician regarding COVID-19 vaccine appropriateness. However, if you do not have history of allergies or anaphylaxis, the chance of an allergic reaction is rare.