Megraud F, Serceau R
Laboratoire de Bactériologie, Hôpital des Enfants de Bordeaux, France.
Zentralbl Hyg Umweltmed. 1990 May;189(6):536-42.
A survey of the water distribution network of a large urban community was performed during a one year period. In addition to standard indicator bacteria, Campylobacter species were looked for after filtration of 500 ml water samples by enrichment of the original filter followed by subculture on a Skirrow's medium as well as a direct filtration procedure on a non selective agar. All steps were performed at 37 degrees C. Specimens collected at the springs (206), treatment stations (206) and at different points along the network (479) were tested. Fourteen strains of Campylobacter were isolated. They were cephalothin resistant and hippurate negative but they did not grow at 42 degrees C. None of them was part of the enteropathogenic Campylobacters. All except one were found in untreated water; in 11 cases among 13 tested, standard indicator bacteria were positive. We conclude that there is a low incidence of Campylobacter species in the water supply tested, that they are sensitive to chlorination and that testing standard indicator bacteria is an effective indicator for Campylobacter species.
在一年时间里，对一个大型城市社区的供水网络进行了调查。除了检测标准指示菌外，还通过对500毫升水样进行过滤，将原始滤膜富集后在斯基罗培养基上进行传代培养，并在非选择性琼脂上进行直接过滤程序来检测弯曲杆菌属。所有步骤均在37摄氏度下进行。对从泉水处（206份样本）、处理站（206份样本）以及沿供水网络不同点（479份样本）采集的样本进行了检测。分离出了14株弯曲杆菌。它们对头孢菌素耐药且马尿酸盐阴性，但在42摄氏度下不生长。它们均不属于肠道致病性弯曲杆菌。除1株外，其余均在未处理的水中发现；在13份检测样本中有11份，标准指示菌呈阳性。我们得出结论，在所检测的供水中弯曲杆菌属的发生率较低，它们对氯化敏感，并且检测标准指示菌是弯曲杆菌属的有效指示指标。
