How Many Cases Of Chickenpox In 2024 In Us. Since the start of the program in 1995, chickenpox cases have declined overall by more than 97%. This year, up through march 28, for example, compared to fewer than 300 cases at the same time last year,.

The current scarcity of chickenpox cases in the us is undoubtedly a good thing. According to the centers for disease control and prevention (cdc) about 15 to 20 percent of people who have received one dose of chickenpox vaccine do still get chickenpox, but.