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    Varicella Vaccine Recommendations

    Introduction

    The varicella vaccines licensed in the United States are single-antigen varicella vaccine and the measles, mumps, rubella, and varicella (MMRV) vaccine.

    MMRV is only licensed for children 1 year to 12 years old. Help parents and caregivers make a decision on which vaccine their child should get.

    This page summarizes CDC's current varicella vaccine recommendations. Access the official, full text below:

    Varicella vaccine effectiveness

    Two doses of the varicella vaccine are about 90% effective at preventing chickenpox.

    Evidence of immunity

    Evidence of immunity to varicella includes any of the following:

    • Documentation of age-appropriate varicella vaccination.
      • For preschool-age children (age 12 months through 3 years): 1 dose
      • For school-age children, adolescents, and adults: 2 doses
    • Laboratory evidence of immunity or laboratory confirmation of disease.
      • Commercial assays can be used to assess disease-induced immunity, but they lack sensitivity to detect vaccine-induced immunity (i.e., they might yield false-negati

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