But to boost arguments against boosters being recommended for the general population, an FDA slide said the risk of COVID-19 for a or healthy 30-year-old is just 0.0004 percent, or 1 in 250,000. Some recommended a booster for older individuals but several experts said they want more data about whether the booster shots can contributed to myocarditis.
Dr. James Hildreth, a voting member on the FDA expert panel, said that he “[has] a serious concern of myocarditis in young people,” referring to a type of heart inflammation. The FDA previously issued warnings that while rare, Pfizer and Moderna vaccines could cause myocarditis among younger individuals.
“I honestly don’t think there is enough good quality data at this point to make an informed decision,” Brittany Kmush, an epidemiologist at Syracuse University, said of the Israeli study, noting the 12-day follow-up period and the variability of the authors’ estimates.