U.s. Officials Reviewing Possibility Moderna Vaccine Is Linked To Higher Risk Of Uncommon Side Effect Than Previously Thought

U.S. officials reviewing possibility Moderna vaccine is linked to higher risk of uncommon side effect than previously thought

Moderna‚Äôs coronavirus vaccine for adolescents has yet to be authorized by federal health officials in part because they are investigating emerging reports that the shots may be associated with a higher risk of a heart condition in younger adults than previously believed, according to two people familiar with the review who emphasized the side effect still probably remains very uncommon. The investigation, which involves the Food and Drug Administration and the Centers for Disease Control and Prevention, is focusing on Canadian data that suggests the Moderna vaccine may carry a higher risk of myocarditis for young people than the Pfizer-BioNTech vaccine, especially for males below the age of 30 or so. The authorities also are scrutinizing data from the United States to try to determine whether there is evidence of an increased risk from Moderna in the U.S. population for the condition, which causes inflammation of the heart.The two people who described the investigation spoke on the condition of anonymity to discuss an ongoing review because they were not authorized to discuss it.Moderna asked the FDA on June 10 to expand the emergency use of its coronavirus vaccine to adolescents between the ages of 12 and 17, but the agency …