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  3. Dog and Human Health People who let their dogs sleep with them or allow them to lick their faces are no more likely than oth

Dog and Human Health People who let their dogs sleep with them or allow them to lick their faces are no more likely than oth

admin2013-06-05  81
问题                             Dog and Human Health
    People who let their dogs sleep with them or allow them to lick their faces are no more likely than other dog owners to have the same strains of E. coli bacteria as their dogs, a Kansas State University veterinarian reports.
    Dr. Kate Stenske, a clinical assistant professor at the university’s College of Veterinary Medicine, said it’s known that diseases can be shared between dogs and people and that about 75 percent of emerging diseases are transferable between humans and other animals.
    She decided to focus on E. coli, which is common in the gastrointestinal tracts of both humans and dogs.
    For the study, Stenske analyzed fecal samples from dogs and their owners. She found that 10 percent of human-dog pairs had the same E. coil strains and that these strains were more resistant to common antibiotics than expected. However, owners had more multiple drug-resistant strains than their dogs.
    "This makes us think that dogs are not likely to spread multiple drug-resistant E. coli to their owners, but perhaps owners may spread them to their dogs," Stenske said in a university news release. "What we learn from this is that antibiotics really do affect the bacteria within our gastrointestinal tract, and we should only take them when we really need to—and always finish the entire prescription as directed."
    There was no evidence that owners who sleep with their dog or allow face licking were more likely to have shared strains of E. coli, according to the study, which was expected to be published in an upcoming issue of the American Journal of Veterinary Research.
    However, the study did find an association between antibiotic-resistant E. coli and owners who didn’t wash their hands after petting their dogs or before cooking meals.
    " We should use common sense and practice good general hygiene," Stenske advised.
    She said the finding that close human-dog bonding behaviors aren’t more likely to spread germs is good news because of the physical and psychological benefits of pet ownership. Surveys show that nearly half of all dog owners share their food with their dogs, and more than half allow their dogs to sleep with them and lick their face.
    " If you look at one study, 84 percent of people say their dog is like a child to them," Stenske added.
    Future research might look at cat owners and shared E. coli. More Americans own cats than dogs, and cats interact with people in different ways than dogs, Stenske noted.
The reason why the study focuses on E. coli is that______.
选项 A、the samples are easy to get
B、it is a representative of bacterium found in human bowels
C、it is a common bacterium shared by dogs and mankind in bowels
D、it is a bacterium spread easily between human beings
答案C
解析 事实细节题。根据题干关键词the study定位到第三段可知，凯特·斯坦科博士决定重点研究大肠杆菌，这种细菌在人与狗的胃肠道里都很常见。所以C为正确选项。A“样本很容易得到，试验比较复杂”，与原文意思不符，故排除；B“这是人类肠胃中比较常见的细菌”，不够全面，故排除；D“这是在人类之间很容易传播的细菌”，文中指的是在人类和狗之间传播，不符合原文意思，故排除。
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