目的探讨在注射吸毒人群中开展针具交换的可行性，评价其预防注射吸毒者HIV感染效果。
Objective To explore the feasible methods and evaluate the results of needle exchange project in preventing from HIV infection among drug users through injection.
在东欧和中亚，注射吸毒者(大多数为男性)占艾滋病毒受染人群的70%以上，但是仅有四分之一的人获得治疗。
In Eastern Europe and Central Asia, injecting drug users, a majority of them men, account for over 70 per cent of HIV-infected persons, but only about a quarter of treatment recipients.
五年前，我尾随《21世纪经济报道》记者周浩认识了吸毒者阿龙，在火车站旁的树丛里看到了触目惊心的注射人群。
Five years ago, I followed, "21st Century Business Herald" reporter Aaron Zhou known drug addicts in the woods next to the railway station saw a startling crowd of injection.
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