细菌源追踪技术的日臻完善，科学家估计，部分地区20%到30%的细菌是由狗狗造成的。
Now that bacteria-tracking methods have gotten better, scientists estimate that in some areas, 20 to 30 percent of the bacteria in a stream comes from dogs.
PFGE分子分型监测网络的建立，有助于细菌性痢疾的主动监测、暴发调查和传染源追踪。
The development of PFGE molecular subtyping surveillance network would contribute to the active surveillance, outbreak investigation and source tracking for Shigellosis.
PFGE分子分型监测网络的建立，有助于细菌性痢疾的主动监测、暴发调查和传染源追踪。
The development of PFGE molecular subtyping surveillance network would contribute to the active surveillance, outbreak investigation and source tracking for Shigellosis.
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