Moderna Will Test New Covid Shot Against Placebo, RFK Jr. Says

Moderna Inc. has agreed to do a placebo-controlled trial of its new Covid vaccine that was recently approved by US regulators, Health and Human Services Secretary Robert F. Kennedy Jr. said Tuesday.

In a post on X, Kennedy said he wanted to “address those of you who have anxieties” about the Food and Drug Administration’s limited approval of Moderna’s vaccine, which was cleared for a narrower segment of the population than prior shots.