Conjugate and polysaccharide pneumococcal vaccines do not improve initial response of the polysaccharide vaccine in HIV-infected adults

AIDS. 2010 May 15;24(8):1226-8. doi: 10.1097/QAD.0b013e3283389de5.


This is a randomized trial to compare the immunoglobulin G response and the antibody avidity after two pneumococcal vaccinations, conjugated pneumococcal vaccine (CPV) and polysaccharide pneumococcal vaccine (PPV) 4 weeks after vs. PPV alone in 202 HIV-infected adults. There were no differences in the two strategies, either in the percentage of immunoglobulin G two-fold increase for the CPV included serotypes or immunoglobulin G two-fold increase, reaching the level of 1 microg/ml except for serotype 23F (26% responded after conjugated pneumococcal vaccine + PPV vs. 14% after PPV). No avidity increases were seen in any strategy.

Trial registration: NCT00999739.

Publication types

  • Multicenter Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Female
  • HIV Infections / immunology*
  • Humans
  • Immunoglobulin G / immunology*
  • Male
  • Pneumococcal Infections / immunology
  • Pneumococcal Infections / prevention & control*
  • Pneumococcal Vaccines / administration & dosage
  • Pneumococcal Vaccines / immunology*
  • Vaccines, Conjugate / immunology*


  • Immunoglobulin G
  • Pneumococcal Vaccines
  • Vaccines, Conjugate

Associated data