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NIAID Starts Trials to Study Allergic Reactions to COVID Vaccines

Summary by Cindy Olmstead

The National Institute of Allergy and Infectious Diseases (NIAID) will conduct a clinical trial to gauge whether people who are highly allergic or have a mast cell disorder are at increased risk for an immediate allergic reaction to the Moderna or Pfizer-BioNTech COVID-19 vaccines. A mast cell disorder is a disease caused by a type of white blood cell called a mast cell that is abnormal, overly active, or both, causing a person to have life-threatening reactions that look like allergic...