One chemistry tweak made mRNA vaccines dramatically safer and more effective—unlocking new potential for fighting disease.

On the night of July 22, the Novokuibyshevsk petrochemical company was attacked in Russia. This is one of the largest Russian ...

As millions of people know firsthand, the most common side effect of mRNA vaccines like the COVID-19 shot is inflammation: soreness, redness and a day ...

What if mRNA vaccines could be made more powerful and less irritating? Scientists at the University of Pennsylvania have ...