Abstract: Objective To investigate the tuberculin test responses among cases with HIV infection and to evaluate association between immune levels and tuberculin positive responses to cases with HIV infection in China.Methods The prospective study was applied.55 cases and 202 controls were observed.The tuberculin tests were practised among cases and controls.The levels of CD₄、CD₈、CD₄/CD₈ of HIV infections were measured by cytometry.Results The tuberculin positive rate of case group (9.8%) was significantly lower than the control group (28.2%, P＜0.01).When the count of CD₄ cell＞200(AIDS),the reaction of Tuberculin Test was 0.When the count of CD₄ cell was more than 200,the reaction of Tuberculin Tests was strong in part of cases (＞15mm).Conclusion The tuberculin positive rate of HIV infections was significantly lower than the control group ( P＜0.01).

Key words: Humanity immunodeficiency virus (HIV), Acquired immunodeficiency syndrome (AIDS), Tuberculin test