Harm reduction in the hills of northern Thailand.

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Abstract
The human immunodeficiency virus (HIV) pandemic has swept through injecting drug user (IDU) communities around the world. Once HIV is present in an IDU community, seroprevalence rates escalate rapidly unless immediate and comprehensive prevention methods are put in place. Such measures often include providing IDUs with sterile injecting equipment and dispensing methadone or other opiate substitution formulas. These measures fall under the rubric of harm reduction-an attempt to reduce the harm to drug users, their families, and communities, including preventing or limiting the transmission of HIV and other blood-borne viruses. In Thailand, HIV-1 spread rapidly among IDUs with seroprevalence rates jumping from 1 to 40% in the space of a year. Current incidence rates are estimated at 11 per 100 person years. This paper describes the establishment and implementation of needle and syringe exchanges among injecting drug users in nine Hilltribe communities in Northern Thailand. The exchanges have been operating for between 1 and 3 years and have been effective in limiting the transmission of HIV within these small communities. The needle and syringe exchanges are run by indigenous staff with the cooperation of the community and provide a good example of the feasibility of establishing locally-run, community-based harm reduction programs.