Update: The Pendulum Swings Again Regarding Myocarditis and COVID-19 Vaccine

Multiple studies have shown mixed results regarding increased risk for myocarditis in people who’ve been vaccinated against COVID-19. Most recently, JUCM News shared that one study actually did reveal increased incidence of myocarditis among some people who got the COVID-19 shot, but there was insufficient evidence to establish a cause-and-effect relationship. Another month brings yet another study with a new perspective, however. This one, just published by the Journal of the American Medical Association, shows that getting a booster dose of the Pfizer-BioNTech vaccine appears to lower risk for myocarditis in adolescents. A review of reports to the Vaccine Adverse Event Reporting System showed that among approximately 2.8 million U.S. adolescents who received the vaccine during the study period, 92% of the 914 events were determined to be nonserious. While 64 reports were related to myocarditis, further analysis revealed that only half of those met the standard for actual myocarditis outlined by the Centers for Disease Control and Prevention.