Surveys of risk factors for HIV infections among gay & bisexual men in San Francisco revealed that the percentage of persons with over sexual partner in the coursework of the 30 days prior to the survey decreased from 49% in August, 1984, to 26% in April, 1985. The percentage of persons who were monogamous, celibate or had no risky sexual activity outside a primary relationship increased from 69% in August, 1984, to 81% in April, 1985. (In this study, an risky sexual practice included anal intercourse without a condom & oral sex with exchange of semen.)
Cases of rectal gonorrhea in men attending the San Francisco City Health Department clinics declined 73% between 1980-1984.
Between 1980-1983, rates of rectal & pharyngeal gonorrhea in men in Manhattan decreased 59%
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