NIH to Study Allergic Reactions to Pfizer, Moderna Vaccines, But Trial Design Raises Questions

The study, announced one day after UK researchers identified polyethylene glycol (PEG) as the compound that triggered a woman’s allergic reaction to the Pfizer vaccine, specifically excludes individuals most likely to develop anaphylaxis, those with PEG allergies and autoimmune disorders.



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The Centers for Disease Control and Prevention (CDC) revised its COVID-19 guidance on Aug. 11, stating that the United States should move away from quarantines and social distancing and focus on treat