Colisure presence-absence medium was compared with standard reference methods for detecting low numbers of total coliform bacteria and E. coli in drinking water when the bacteria were subjected to chlorine stress. When Colisure was compared with established reference methods to detect total coliforms in dilute, disinfected samples, Colisure yielded more positive results after 24, 28, and 48 h than lauryl tryptose broth (LTB) confirmed in bile green lactose broth after 48 h. Colisure also detected higher levels of chlorine-injured E. coli than LTB confirmed in EC medium with 4-methylumbelliferyl B-D-glucuronide (EC/MUG). The sensitivity and specificity of Colisure were also evaluated and were determined to be between 96 and 100 percent on nonchlorinated samples when positive and negative tests were verified.

中文翻译：

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比较效果。

将无大肠菌存在的培养基与标准参考方法进行了比较，以检测当细菌受到氯胁迫时饮用水中低含量的大肠菌和大肠杆菌的总数。当将Colisure与建立的参考方法进行比较以检测稀释，消毒样品中的大肠菌群时，与48小时后在胆汁绿色乳糖肉汤中确认的月桂基胰蛋白酶肉汤（LTB）相比，Colisure产生了更多阳性结果。与在含有4-甲基伞形酮BD-葡糖醛酸苷（EC / MUG）的EC培养基中确认的LTB相比，Colisure还检测到了更高水平的氯损伤大肠杆菌。还对Colisure的敏感性和特异性进行了评估，在验证阳性和阴性试验后，对非氯化物样品的敏感性和特异性都确定在96％至100％之间。