Researchers: Allergic Reactions to Pfizer Vaccine Are Rare

Scientists at the Centers for Disease Control and Prevention (CDC) and the Food and Drug Administration (FDA) reviewed reports of adverse reactions to the Pfizer-BioNTech vaccine in the United States and found 21 confirmed cases of allergic reactions, or anaphylaxis, among all reports to the Vaccine Adverse Event Reporting System (VAERS) between December 14 and 23, 2020.Researchers Allergic Reactions to Pfizer Vaccine Are Rare

Anaphylaxis can be described as an allergic reaction after exposure to a specific substance that includes venom, food, or medication.

Over the said period, approximately 1,893,360 people in the United States received the first dose of the Pfizer vaccine meaning that there are 11.1 cases of anaphylaxis for every million doses.

The scientists write in their report: “Mortality from COVID-19 in populations at high risk is substantial, and treatment options are limited. Widespread vaccination against COVID-19 with highly effective vaccines represents an important tool in efforts to control the pandemic.”

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