Bacterial concentrations are higher during exacerbation than during stable disease; however, these studies are cross sectional and devoid of strain typing.
虽然疾病加重期的气道细菌浓度高于稳定期,但是,以前的研究均为横断面研究,且缺乏菌株分型。
3
CONCLUSION the bacterial culture of patients with PPE is important to the clinical pathological typing and the choice of treatment method.