ObjectiveTo look into the infection status of human immunodeficiency virus(HIV) and mycobacterium tuberculosis(MTB) in drug users(heroin dependant)and the relationship between HIV and MTB.

• 目的了解吸毒人群(海洛因依赖者)感染人类免疫缺陷病毒和结核分支杆菌的情况及其关系。