CDC confirms at least six have had adverse reactions to COVID-19 vaccine
So far, some 272,000 shots of Pfizer-BioNTech vaccine have been given in US
In Alaska, three health care workers needed medical attention after getting shot
In Chicago suburb, hospital stopped inoculations after four had severe reaction
FDA official says allergic reactions could be due to polyethylene glycol (PEG)
PEG is a chemical compound present in both Pfizer and Moderna vaccines
PEG is also found in laxatives as well as creams, ointments, and solvents
In industrial use, PEG is also a binding agent that can be found in antifreeze
FDA insists most Americans with allergies should be safe to get the vaccine
Otro enfermero sufre grave reacción alérgica tras recibir la vacuna contra el coronavirus
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Coronavirus: Trabajador de salud sufre grave reacción alérgica tras recibir vacuna anticovid-19 de Pfizer | Salud
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