They used a high dose of antibiotic to kill the native gut bacteria and then fed those mice fecal material from a protected strain.

他们用高剂量的抗生素来杀死易得病小鼠肠道里原生的细菌，然后从其他受保护的小鼠身上获取得的排泄物来喂那些小鼠。

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Using techniques similar to those involved in DNA fingerprinting, they then looked for the presence of antibiotic-resistant genes - and found these in high concentrations.

他们运用类似DNA指纹识别的技术，寻找抗药性的基因的存在，并在高浓度季铵盐存在下找到了它们。

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The team then exposed the mice to Citrobacter. One antibiotic had no obvious effect.

该研究小组揭示了小鼠对柠檬宿杆菌的反应，一种抗生素没有明显的作用。

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Experts say it isn't viable for drug companies that spend millions developing a new antibiotic medicine then to be told by regulators to hold it in reserve for the next emergency.

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Then the volunteers will be given an antibiotic to essentially wipe out the population of M. smithii and the same parameters will be measured again, to see if eliminating the microbes will help change the patient's weight profile and alter their trajectory toward diabetes.

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Doctors told von Lipinski he would be on an intravenous antibiotic drip for four hours and then could go home.

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