Weak Linkage Between HIV Epidemics in Homosexual Men and Intravenous Drug Users

  • Herbert W. Hethcote
  • James W. Van Ark


Since homosexual men who are also intravenous drug users interact sexually with homosexual men and share needles with intravenous drug users, they are a potential transfer linkage between the HIV epidemics in homosexual men and intravenous drug users. One theory is that these HIV epidemics are not crucially linked by homosexual intravenous drug users so that neither epidemic is feeding or sustaining the other. A simulation model with HIV transmission and progression to AIDS is formulated for three risk groups. Evidence based on fitting this model to AIDS incidence data in New York City supports the theory that neither HIV epidemic sustains the other. Thus the HIV epidemics in homosexual men and intravenous drug users are only weakly linked and can be modeled as separate epidemics.


Active Class Intravenous Drug User Transition Rate Constant Homosexual Partner Homosexual Partnership 
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Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • Herbert W. Hethcote
    • 1
  • James W. Van Ark
    • 1
  1. 1.Department of MathematicsUniversity of IowaIowa CityUSA

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