FDA Asks Pfizer and Moderna to Include More Children in COVID-19 Vaccine Trials: Reports

Vials with Pfizer and Moderna COVID-19 vaccine labels are seen in this illustration picture taken on March 19, 2021. Dado Ruvic/Reuters

The Food and Drug Administration (FDA) has asked Pfizer and Moderna to expand their COVID-19 vaccine trials for 5 to 11-year-olds in an effort to determine whether a rare side effect in the form of heart inflammation is more common among younger groups, according to reports.

The FDA has asked the two pharmaceutical companies to expand their 5-to-11-year-old trial groups to include at least 3,000 children, according to the New York Times.