P1085 / Human Papilloma Virus (HPV) Type-Specific Antibody

P1085 is a follow up study of participants enrolled in P1047 to determine the long term immunogenicity of quadrivalent HPV (QHPV) vaccine in HIV-1 infected children.  The study is designed to determine the HPV-type specific antibody levels at 2, 3.5, and 5 years after completion of the QHPV vaccine schedule and compare these to published levels of QHPV-induced antibody levels of HIV uninfected children.