title: Update on varicella.
authors: Centers for Disease Control and Prevention, Atlanta, GA, USA.
authors: J F
authors: JF
authors: Seward
mesh_terms: D002644:Chickenpox / Q000453:epidemiology / Q000517:prevention & control*; D019433:Chickenpox Vaccine; D002648:Child; D002675:Child, Preschool; D006801:Humans; D017589:Immunization Programs; D007223:Infant; D014481:United States / Q000453:epidemiology
chemical_list: D019433:Chickenpox Vaccine