Preventing Chickenpox in the United States
Historical Trends and an International Vaccination Policy Comparison Prepared October 2026 — ConsultJY Research Brief Executive Summary Before the chickenpox (varicella) vaccine was introduced in the United States in 1995, the disease caused roughly 4 million infections, 11,000 hospitalizations, and up to 150 deaths every year. A single-dose vaccination program cut that burden dramatically —…