The mRNA vaccines drastically reduce severe disease and death in elderly people, it's a really strong and easily observed effect. And they were developed in rec

The mRNA vaccines drastically reduce severe disease and death in elderly people, it's a really strong and easily observed effect. And they were developed in record time compared to any previous vaccine, so that is certainly a very impressive accomplishment. Against earlier variants of the virus the vaccines were also very impressive in preventing infections. Far higher than the 50% minimum standard that was set when the development started.