MRNA technology is already used in Moderna’s and Pfizer/BioNTech’s currently licensed COVID-19 vaccines, which have been found to be safe and effective.

The Department of Health and Human Services (HHS) is canceling hundreds of millions of dollars in funding pledged to Moderna to help the company develop, test and license mRNA-based vaccines to ...

The department cited Moderna’s use of the messenger RNA technology, which it said “remains under-tested,” for the ...