[A preliminary study on the behavior of 225 drug abusers and the risk factors of HIV infection in Ruili county Yunnan Province].

We carried out the investigation on 225 drug abusers in L village, Ruili county in March 1990, and tested blood specimens of intravenous users (IVDUs) for HIV infection. Of 225 drug abusers, 153 (68.0%) were by inhaling and 72 (32.0%) were by intravenous. In the recent two years, the proportion of IVDUs in drug abusers sharply increased from 13.5% in 1988 to 30.5% in 1989, and 32.0% in spring 1990. Blood specimen were collected from 64 out of 72 IVDUs, among them 51 (79.7%) were HIV-positive. The findings of relation between HIV infection and drug abuse suggested that the sharing common syringes with others and failure of their sterilization were independent risk factors.