What is the varicella vaccine against pediatric chickenpox?

Updated: Nov 30, 2018
  • Author: Kirsten A Bechtel, MD; Chief Editor: Russell W Steele, MD  more...
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Answer

Varicella vaccine consists of live attenuated Oka strain varicella virus. The vaccine is safe and highly immunogenic. It was approved for use in the United States in 1995 and has greatly reduced the incidence and mortality due to varicella. [6] The vaccine has a protective efficacy of 71-100% against varicella. However, it affords a much greater degree of protection against moderate and severe varicella (95-100%). [28]


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