Objective: Pneumocystis carinii pneumonia(PCP) is a common infectious disease of respiratory system for immune impaired host, including aquired immune deficiency syndrome(AIDS),and its pathogensis is yet to beunderstood.

• 目的:卡氏肺孢子虫肺炎(PCP)是获得性免疫缺陷综合征(AIDS)等免疫损害宿主最常见的呼吸系统感染性疾病,其发病机制仍未完全清楚。