Polyethylene glycol (PEG) is a cause of anaphylaxis to the Pfizer/BioNTech mRNA COVID‐19 vaccine
On the first day of the UK vaccination campaign with the coronavirus disease 2019 (COVID‐19) vaccine, there were reports of 2 cases of anaphylaxis within minutes of administration of the Pfizer/BioNTech messenger RNA (mRNA) vaccine and a third case of an allergic reaction not requiring adrenaline…
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