What is the impact of the chickenpox (varicella) immunization (vaccine) in the US?

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 up to a 90% decline. (See Epidemiology.)

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