United States National Institute of Allergy and Infectious Diseases (NIAID) announced on Monday it would examine why certain people had suffered allergic reactions to Pfizer Inc. and BioNTech's vaccine against coronavirus.
"There is now advanced planning for a study in highly allergic individuals in clinical trials to test the Moderna and Pfizer vaccines and try to understand the immune mechanisms that are underpinning any reactions," chief of NIAID's Allergy, Asthma, and Airway Biology Branch Alkis Togias told CNBC.
Earlier this month, the Centers for Disease Control and Prevention (CDC) stated it had learned reports some people had developed severe allergic reactions, such as anaphylaxis, after receiving Pfizer and BioNTech's vaccine.
