What is the global annual incidence of pediatric chickenpox?

Updated: Nov 30, 2018
  • Author: Kirsten A Bechtel, MD; Chief Editor: Russell W Steele, MD  more...
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Varicella affects nearly all children worldwide who do not have immunity. Annual incidence is estimated at 80-90 million cases. Most developing countries have low immunization rates because of the cost involved, and varicella disease is a risk for travelers to such countries.

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