Objective To investigate the expression pattern of Th1 and Th2 in patients with pulmonary tuberculosis including sputum positive pulmonary tuberculosis and coinfection with human immunodeficiency viruses(HIV), and its relation to disease severity.

• 目的探讨Th1、Th2在菌阳肺结核及人类免疫缺陷病毒(HIV)感染合并肺结核患者体内的表达水平以及与病情严重程度的关系。