A report by the Centers for Disease Control and Prevention (CDC) shows that one in every 100,000 people who received the Covid-19 vaccine from Pfizer-BioNTech in the United States have had severe allergic reactions. These reactions are more than those produced by vaccines such as influenza, the CDC points out to the television channel CNBC.
However, allergic reactions remain rare and claim that the benefits of immunization “far outweigh the known risks.”
The data collected by the CDC show that there were 21 cases of anaphylaxis – which the experts of this center define as “a serious and life-threatening allergic reaction that occurs rarely after vaccination” – after almost two million injections (1,893,360) were administered in the US between December 14 and 23.
The Morbidity and Mortality Weekly Report (MMWR) that this assumes a rate of 11.1 cases of anaphylaxis per one million doses administered. While flu vaccines cause about 1.3 cases of anaphylaxis per million doses administered, so the rate of anaphylaxis from the Pfizer vaccine is approximately ten times higher.
However, as the CDC authorities have explained in a press conference, cases of anaphylaxis continue to be “extremely rare“and he assured that the most convenient thing is to get vaccinated, especially in the context of the pandemic.
“A good valuation proposal for someone to be vaccinated is their risk of Covid and if the negative consequences of Covid are even greater than the risk of a serious reaction to the vaccine“said Nancy Messonnier, director of the CDC’s National Center for Immunization and Respiratory Diseases.
And he added that, fortunately, it is known “how to treat anaphylaxis and they have arranged what is necessary to ensure that at the vaccination sites, the people who administer the vaccine are ready to treat anaphylaxis. “
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