方法采用二倍稀释法测定最低抑菌浓度(MIC)，以半数动物存活时间为指标比较药物对实验性结核病的疗效。
Methods the mic was determined by the tube doubling dilution method, and the effect of the drugs was assessed by half survival time of the mice.
分支杆菌，包括结核分支杆菌，和孢子形成俊，包括艰难梭菌，也能存活数月时间。
Mycobacteria, including Mycobacterium tuberculosis, and spore-forming bacteria, including Clostridium difficile, can also survive for months on surfaces.
目的研究大肠埃希菌在水中的存活时间及影响存活时间的因素。
Objective to research the viable time and the influencing factors of Escherichia coli in water environment.
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