Severe allergic reactions to COVID-19 vaccines are extremely rare, CDC says
Vaccine sites should still be prepared for the dangerous but treatable reaction
![man getting a COVID-19 vaccine](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2021/01/010621_acanaphylaxis-pfizer_feat.jpg?fit=1030%2C580&ssl=1)
In the first wave of COVID vaccinations in the United States, which included health care workers and residents in long-term care such as this recipient in California, there were 21 cases of anaphylaxis reported, the Centers for Disease Control and Prevention found.
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