On Sunday, the Food and Drug administration said that it is reviewing reports that the Moderna COVID-19 vaccine can cause heart issues in some adolescents.In a statement given on Sunday, Moderna said the FDA "requires additional time to evaluate recent international analyses of the risk of myocarditis after vaccination."According to the New York Times, Moderna had requested authorization from the FDA back in June for the use of its vaccine in children ages 12 to 17 years, but has yet to receive a ruling on the application.Adolescents would receive the same dosage as adults, 100 micrograms.In July, the European Medicines...