The promise of mRNA technology seemed boundless after the success of the coronavirus vaccines, but Robert F. Kennedy Jr. has singled it out for scrutiny, clouding its prospects.

U.S. President Donald Trump's nominee for director of the CDC was pulled into political contention over U.S. vaccine policy ...

The Trump administration's cancellation of $766 million in contracts to develop mRNA vaccines against potential pandemic flu viruses is the latest blow to national defense, former health security ...

The Trump administration has cancelled $766 million in contracts to develop mRNA vaccines against potential pandemic flu viruses. In addition, since President Donald Trump took office, at least ...