The possibility that the vaccines could somehow prompt the condition is only theoretical and an analysis of U.S. government data found no evidence that it did.
in kids who have had COVID-19, and very rarely affects adults. The condition often leads to hospitalization, but most patients recover., it is sometimes mistaken for Kawasaki disease, which can cause swelling and heart problems. Since February 2020, more than 6,800 cases have been reported in the U.S., according to the Centers for Disease Control and Prevention.
“We don’t know what the exact contribution of the vaccine to these illnesses is,’’ Creech said. “Vaccine alone in absence of a preceding infection appears not to be a substantial trigger.’’ More than 21 million people aged 12 to 20 received at least one vaccine dose during that time. Twenty-one of them developed the inflammatory condition afterward. All had received Pfizer shots, the analysis found. Fifteen of the 21 had laboratory evidence of a previous COVID-19 infection that could have triggered the condition.
The results suggest that the inflammatory condition may occur after vaccination in 1 in 1 million children who have had COVID-19, and in 1 in 3 million who have no detectable evidence of previous COVID-19 infection.