title: Test results encouraging for potential varicella vaccine.
mesh_terms: D000293:Adolescent; D002644:Chickenpox / Q000517:prevention & control*; D002648:Child; D002675:Child, Preschool; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D014645:Herpesvirus 3, Human / Q000276:immunology*; D006801:Humans; D007223:Infant; D011897:Random Allocation; D014611:Vaccination; D014765:Viral Vaccines / Q000276:immunology*
chemical_list: D014765:Viral Vaccines