2 UK Health Workers Suffer Allergic Reaction to COVID-19 Vaccine.
After the U.K.'s first day of mass coronavirus vaccinations on Dec.
8, .
National Health Service (NHS) England says two health care workers have "responded adversely.".
The workers both reportedly have a history of allergic reactions and carry adrenaline autoinjectors.
According to Stephen Powis, national medical director for NHS England, "both are recovering well.".
U.K. health authorities are advising anyone with a "significant history of allergic reactions" to refrain from getting the Pfizer-BioNTech vaccine.
The Medicines and Healthcare products Regulatory Agency (MHRA) added that vaccines "should only be carried out in facilities where resuscitation measures are available." .
Dr. Paul Offit, a vaccine expert, told CNN that "in the United States, roughly one of every 1.4 million doses of vaccines is complicated by a severe allergic reaction."
