Harvard Medical School Guides
Harvard Medical School Guide: Manging Shingles
If you’re like 95% of American adults, you had chickenpox in childhood. Before the United States started its widespread vaccination program in 1995, there were roughly four million cases of chickenpox every year. Contracting the highly contagious virus, with the itchy, whole-body rash that it causes, was virtually a rite of passage for many American children.