RIO DE JANEIRO, BRAZIL - Six people have developed a severe allergic reaction called anaphylaxis after receiving the covid-19 vaccine from Pfizer and BioNTech, said the CDC (Centers for Disease Control and Prevention) on Saturday, December 19th.
Some 113,000 people have already been vaccinated, according to the CDC, which is studying the reports of patients who presented some form of symptom after administration.
The agency said it is investigating the cause for the allergic reactions and how the six cases may be linked. Some of the individuals are from Alaska, but others are from other places, said Tom Clark . . .