, including the frequency of drug injection, the sharing of injection equipment, injecting in shooting galleries, and sexual behaviors. They define the transmission of the HIV virus as a form of interaction among two or more persons, and these high risk behaviors involve two or more persons under circumstances that would facilitate the transmission of the HIV virus if it were present (Friedman and des Jarlais, 1991, 239-250). The depth of the problem can be seen in the results of a survey reported by Booth, Koester, Brewster, and Weibel (1991) which showed that over fifty percent of the subjects injected drugs on a daily basis, while 70 percent shared needles w
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