European Union health officials say the rate of infection from the highly-toxic strain of E.coli which has hit Germany and killed nearly 20 people has fallen in the past two days.

高毒性大肠杆菌袭击德国，造成近20人死亡。欧盟官员称，过去两天，这种大肠杆菌的感染率已经出现下降。

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European Union health officials say the rate of infection from the highly-toxic strain of E. coli which has hit Germany and killed nearly 20 people has fallen in the past two days.

高毒性大肠杆菌袭击德国，造成接近20人死亡。欧盟官员表示，过去两天，这种大肠杆菌的感染率已经出现下降。

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Results: The sporadic outbreak of vibrio cholera has some characters: including non toxic strain infection, low detection rate of plasmid and ct gene and increase of drug resistance.

结果：散发性霍乱以无毒株为主，质粒及肠毒素基因的携带率极低，但耐药性有所增加。

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Results: The sporadic outbreak of vibrio cholera has some characters: including non toxic strain infection, low detection rate of plasmid and ct gene and increase of drug resistance.

结果：散发性霍乱以无毒株为主，质粒及肠毒素基因的携带率极低，但耐药性有所增加。

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