Risk of allergic reaction to mRNA COVID-19 vaccines 'extremely low'

Messenger RNA (mRNA) vaccines are a new technology at the forefront of the vaccine response to COVID-19. Anxiety about possible allergic reactions may lead to vaccine hesitancy. Researchers behind a study that included more than 50,000 people who had received this type of vaccine found allergic reaction rates to be “extremely low.” In a new study, researchers have found that the incidence of allergic reactions in people who had received an mRNA COVID-19 vaccine is “extremely low.” The study, published as a research letter in the journal JAMA, provides further evidence of the overall safety of mRNA vaccines.