P1061s / Evaluation of Immunologic Mememory in HIV-Infected Children Treated with HAART.

P1061s was a follow-up substudy of P1024 study to evaluate the persistence of immunologic memory to pneumococcal conjugate vaccine (PCV) and pneumococcal polysaccharide vaccine (PPV), measles vaccine (MMR), and hepatitis B virus (HBV) vaccine in HIV-infected subjects on HAART who participated in, and completed, P1024.  The study was designed to determine whether HIV-infected children have evidence of pneumococcal type-specific, hepatitis B-specific, and measles-specific immunologic memory 3-4 years after receiving the vaccines while on HAART.