医院内获得性肺炎(HAP)是指患者入院时未患有、也不处于感染潜伏期,而是在入院48 h后罹患的由病原体引起的肺实质炎症。HAP是我国最常见的院内感染类型。肺结核患者多免疫功能低下,肺部基础疾病使肺功能受损,是院内获得性肺炎的易感人群,其院内感染的发生率和病死率均较高,且所 Hospital Acquired Pneumonia (HAP) refers to patients who were not hospitalized at the time of admission and were not at the latent period of infection but rather were caused by pathogen-induced pulmonary parenchymal inflammation 48 h after admission. HAP is the most common type of nosocomial infection in our country. Multi-immunocompromised patients with pulmonary tuberculosis, pulmonary lung disease damage underlying disease is a predisposing pneumonia in hospital populations, the incidence of nosocomial infections and mortality were high, and