Shingles vaccine reduces risk of heart disease by 23%, study of one million people finds

A study of more than one million people found the shingles vaccine may lower the risk of heart disease and stroke for up to eight years after the shots.

​ A study of more than one million people found the shingles vaccine may lower the risk of heart disease and stroke for up to eight years after the shots. Read More Breaking News, Latest News and Videos | CNN