Objective: to research the pathogenic bacteria and antibiotics susceptibility of hospital acquired lower respiratory infection and provide the evidence for antibiotic using in the clinics.

目的：明确医院获得性下呼吸道感染的致病菌及其抗菌药物敏感性，为临床使用抗菌药物提供依据。

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Methods: the pathogenic bacteria isolated from 86 cases of hospital acquired lower respiratory infection and their antibiotics susceptibility were retrospectively analyzed.

方法：对86例医院获得性下呼吸道感染的细菌病原学及药物敏感性进行回顾性分析。

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