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医院空气与物体表面微生物污染程度,直接关系到医院内感染率发生的高低。1989年1～8月份,作者对二所医院的空气与物体表面微生物进行了监测,现将结果报道如下。(一)监测方法1.空气细菌检测:在采样点距地面1m处用LWC—Ⅰ型离心式空气微生物采样器,将空气中细菌直接收入培养基基条上,空气流量为每分钟40l,细菌总数采样时间为1min; α·β链球菌为2min。将基条置37℃培养24h,按下式计算出空气细菌含量:
Hospital air and the degree of microbial contamination of the surface, directly related to the level of infection in the hospital. From January to August 1989, the authors monitored air and surface micro-organisms in two hospitals, and the results are reported below. (A) monitoring methods 1. Air bacteria detection: sampling point 1m away from the ground with LWC-Ⅰ centrifugal air microbes sampler, the bacteria in the air directly into the media, the air flow rate of 40l per minute, bacteria The total number of sampling time was 1min; α · β-Streptococcus 2min. The base set at 37 ℃ for 24h, according to the following formula to calculate the air bacteria content: