The US medicines regulator approved the first-ever mRNA-based vaccine in the US against flu for seniors.

The FDA has approved the nation’s first messenger RNA-based influenza vaccine, marking a significant development in the fight against the respiratory illness — and the end of a…

The FDA’s approval is welcome news, and will hopefully open the door to much faster production of an effective vaccine to counter any future flu pandemic.

The vaccine, developed by Moderna, is approved for adults ages 50 to 64 and those 65 and older, who face the highest risk of severe illness.