The person, who had no known drug allergies, was still in the hospital on Wednesday morning under observation, according to the report. It is unknown whether they suffer from any other types of allergies. The Alaska resident’s reaction was reportedly similar to anaphylactic reactions two heal workers in Britain experience after receiving the Pfizer-BioNTech vaccine last week – both of whom have recovered. Of note, they both had a history of severe allergies. One, a 49-year-old woman, is allergic to eggs (which Pfizer says are not in their vaccine). The other, a 40-year-old woman is allergic to several different medications. Both routinely carry EpiPenn-like devices in case of reactions.