Immunogenicity and safety of an inactivated hepatitis a vaccine in anti-HIV positive and negative homosexual men (original) (raw)

1995, Journal of Medical Virology

Response to hepatitis A vaccination in human immunodeficiency virus-infected and-uninfected homosexual men

Journal of Infectious …, 1997

The influence of human immunodeficiency virus (HIV) infection and vaccination schedule on the immunogenicity of a hepatitis A vaccine was examined. Ninety HIV-infected homosexual men received two vaccinations with hepatitis A vaccine (each 2 mL of 720 ELISA units/mL) either 1 or 6 months apart; 44 HIV-uninfected men received vaccine at study entry and at 6 months. Antihepatitis A virus (HAV) titer after vaccination was measured in 83 HIV-positive and 39 HIVnegative men. Seroconversion (anti-HAV antibody §20 IU/L) after two vaccinations occurred more frequently in HIV-negative men (100% vs. 88.2%; P Å .03). Anti-HAV titer after two vaccinations was also significantly greater in HIV-negative men (1086 vs. 101 IU/L; P Å .0001). HIV-positive men who responded to vaccination had significantly more CD4 lymphocytes (mean, 540/mL) at baseline than those who did not (280/mL; P Å .033). Vaccine schedule did not affect response. Vaccination of susceptible patients against HAV should be recommended early in HIV infection using the shorter course to encourage compliance.

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