Moderna says its COVID-19 vaccine is effective in teens

Moderna’s COVID-19 vaccine is effective in 12- to 17-year-olds, the company announced today in a press release. It plans to ask the Food and Drug Administration to authorize the shot for this age group in early June.

None of the teens who received two shots of the Moderna vaccine in a clinical trial developed COVID-19, and there were no safety concerns. The trial included 3,732 participants. Two-thirds got the shot, and one-third received placebo injections. There were four cases of COVID-19 in the group that received placebo injections.

The vaccine was 93 percent effective against even mild forms of the disease in this group as early as 14 days after the first dose, the company said.

The Moderna vaccine is currently authorized for...

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