1 HIV-infected children ≥12 months old with CD4+ T-lymphocyte percentages ≥15%. 2  There is a lack of data on the use of varicella vaccine in HIV-infected adolescents and adults. 3  The immunogenicity may be lower in these groups compared to children 1 to 8 years old.IV-infected people eligible for vaccination should get 2 doses of single-antigen varicella vaccine (Varivax®) separated by 3 months. HIV-infected children, adolescents, or adults should not get the combination measles, mumps, rubella, and varicella vaccine (ProQuad®). Top of Page.