Topic summary
COVID vaccine
Extracted from the Wikipedia article COVID-19 vaccine.
Serious adverse events
- anaphylaxis, a severe type of allergic reaction. Anaphylaxis affects one person per 250,000 to 400,000 doses administered. The rate is in line with the expected rate of anaphylaxis to non-COVID vaccines. According to a 2022 systematic review, the mortality rate of people with anaphylaxis following COVID‐19 vaccination was 0.5%. The review concluded the consensus of the studies was that "the risk of anaphylaxis is not significant when compared to the risks posed by COVID‐19 infection".