Has the prevalence of chickenpox (varicella) in the US changed over time?

Updated: Aug 31, 2020
  • Author: Anthony J Papadopoulos, MD; Chief Editor: Dirk M Elston, MD  more...
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Since the introduction of widespread pediatric immunization in the United States in 1995, the incidence of varicella has declined significantly, approaching a decline of up to 90%. Mortality from varicella has also declined since the initiation of the US vaccination program, with mortality decreasing by approximately 66%. [7]

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