Antibody to 7 common pneumococcal capsular polysaccharides was measured in 11 children with human immunodeficiency virus (HIV) infection who had been previously vaccinated with 23-valent polysaccharide pneumococcal vaccine, 11 unvaccinated children with HIV infection, and 11 healthy subjects. No differences in capsule-specific IgG levels against serotypes 4, 6B, 8, 12F, 14, 19A, and 19F were observed among the vaccinees with HIV infection compared with unvaccinated children with HIV infection and age-matched control children.