近年来有人指出，慢性难治性肺部感染的形成与体内细菌形成生物被膜有关，因而有关生物被膜菌的研究报告逐渐增多起来。临床上经常会遇到这样的病例，特别多见于慢性支气管炎、支气管扩张等合并肺部感染的患者，这类患者不像一般的肺炎患者，他们容易反复发作肺部感染，虽然每 In recent years, it has been pointed out that the formation of chronic refractory pulmonary infection is related to the formation of biofilms by bacteria in the body, and the reports on biofilms are gradually increasing. Clinically often encounter such cases, especially common in patients with chronic bronchitis, bronchiectasis and other pulmonary infections, unlike patients with pneumonia, they are prone to repeated episodes of pulmonary infection, although each