Course: Rare PEG Allergy Triggered Postvaccination Anaphylaxis
CME Credits: 1.00
Released: 2021-05-18
Researchers in the UK have linked anaphylaxis in who received the Pfizer-BioNTech COVID-19 vaccine with her allergy to polyethylene glycol (PEG), which stabilizes lipid nanoparticles that deliver mRNA in the vaccine to cells in the body.
Although anaphylaxis after receiving an mRNA vaccine is , the woman had required adrenaline after a previous severe systemic allergic reaction to azithromycin that contained PEG. Her systemic reactions to consumer products like shampoo, toothpaste, and mouthwash containing PEG were less severe.
Educational Objective
To identify the key insights or developments described in this article
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