A health care worker in Alaska developed a severe allergic reaction after receiving the Pfizer-BioNTech COVID-19 vaccine, according to NBC News.
At least one other health care worker at the same facility also experienced a less serious reaction following the injection.
The unnamed health care worker, an employee at the Bartlett Regional Hospital in Juneau, Alaska, had to be hospitalized overnight for the severe reaction.
The worker, a middle-aged woman, reportedly had no history of allergies and never experienced anaphylaxis, according to the New York Times.