弓形虫为机会性致病病原体 ,近几年的研究表明 ,在正常人群、孕妇、弱智、畸形儿童、吸毒人群及中枢神经系统疾病的患者中均有不同程度感染 ,在免疫机能低下时尤为严重 ,因此免疫功能低下的肺结核病人易导致弓形虫感染和发病。为了探讨弓形虫感染与肺结核病之间的关系 ,作者采 Toxoplasma gondii is an opportunistic pathogenic agent. In recent years, studies have shown that there are different levels of infection in normal population, pregnant women, mentally retarded, deformed children, drug addicts and patients with central nervous system diseases, especially when the immune function is low , So immunocompromised patients with tuberculosis easily lead to Toxoplasma infection and pathogenesis. To explore the relationship between Toxoplasma infection and pulmonary tuberculosis, the authors adopted