Document 0839 DOCN M9470839 TI Prolonged clinical latency and survival of macaques given a whole inactivated simian immunodeficiency virus vaccine. DT 9409 AU Hirsch VM; Goldstein S; Hynes NA; Elkins WR; London WT; Zack PM; Montefiori D; Johnson PR; Immunodeficiency Viruses Section, National Institute of Allergy; and Infectious Diseases, National Institutes of Health, Bethesda,; Maryland. SO J Infect Dis. 1994 Jul;170(1):51-9. Unique Identifier : AIDSLINE MED/94284661 AB Simian immunodeficiency virus (SIV) infection of macaques is a useful and relevant model for evaluating candidate human immunodeficiency virus (HIV) vaccines. One important feature of this model is that SIV vaccines can be evaluated for their ability to prevent infection as well as to prevent or delay the onset of AIDS. In the present study, a group of macaques was vaccinated with whole inactivated SIV and challenged with peripheral blood mononuclear cells from an SIV-infected macaque. This challenge represented a rigorous and realistic test of the immunization protocol. All macaques became infected after challenge; however, immunized animals survived significantly longer (P < .03) than naive controls. These data suggest that similar vaccines administered to humans at risk for HIV-1 infection might delay or prevent AIDS even if the vaccine failed to prevent infection. DE Amino Acid Sequence Animal Antibodies, Viral/BLOOD Antigens, Viral/BLOOD AIDS Vaccines Base Sequence Cells, Cultured DNA, Viral Human Macaca nemestrina Molecular Sequence Data Monocytes/MICROBIOLOGY Sequence Homology, Amino Acid Simian Acquired Immunodeficiency Syndrome/IMMUNOLOGY/MORTALITY/ *PREVENTION & CONTROL/PHYSIOPATHOLOGY SIV/IMMUNOLOGY/PHYSIOLOGY T-Lymphocyte Subsets/IMMUNOLOGY Vaccines, Inactivated/IMMUNOLOGY Viral Vaccines/*IMMUNOLOGY Virus Latency JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).