Chicken Pox Vaccine Faqs Parents Questions Answered
more than four million cases each year before the vaccine, first developed in the 1960s and ’70s, was implemented. Less than 350,000 chickenpox cases are now recorded per year in the U.S. How Effective Is the Chickenpox Vaccine? The recommended two doses of the chickenpox vaccine reduce your child’s likelihood of contracting the disease by more than 90 percent, creating an important safeguard for your child and for you, given that adults are more likely than children to develop severe symptoms....