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<blockquote data-quote="Douglas" data-source="post: 740634" data-attributes="member: 8840"><p>More recent studies reject their findings:</p><p></p><p><a href="http://www.slate.com/id/2242290/" target="_blank">http://www.slate.com/id/2242290/</a></p><p></p><p></p><p>In 2003, a research team from the University of Idaho reported no difference at all in the levels of acid resistance between E. coli O157:H7 from grass- and grain-fed cattle. (In both cases resistance was high.) Their conclusion stands in direct contrast to the broad claims about grain diets that have been made in the popular press since 2006. It must be that some other factor or factors were responsible for the development of E. coli O157:H7. </p><p></p><p></p><p>Ground beefWe don't yet know what these might be. But four studies, published between 2003 and 2005, have developed an intriguing hypothesis. Maybe, some reasoned, E. coli O157:H7 behaves differently from other strains because it develops in a different part of the cow's intricate digestive system. Sure enough, O157:H7 turned out to have a strong tendency to congregate in the recto-anal junction, whereas most other E. coli tend to gather primarily in the colon. Given that, we might presume that the production of E. coli O157:H7 depends more on its unique location than on what its cow host happens to be eating.</p></blockquote><p></p>
[QUOTE="Douglas, post: 740634, member: 8840"] More recent studies reject their findings: [url=http://www.slate.com/id/2242290/]http://www.slate.com/id/2242290/[/url] In 2003, a research team from the University of Idaho reported no difference at all in the levels of acid resistance between E. coli O157:H7 from grass- and grain-fed cattle. (In both cases resistance was high.) Their conclusion stands in direct contrast to the broad claims about grain diets that have been made in the popular press since 2006. It must be that some other factor or factors were responsible for the development of E. coli O157:H7. Ground beefWe don't yet know what these might be. But four studies, published between 2003 and 2005, have developed an intriguing hypothesis. Maybe, some reasoned, E. coli O157:H7 behaves differently from other strains because it develops in a different part of the cow's intricate digestive system. Sure enough, O157:H7 turned out to have a strong tendency to congregate in the recto-anal junction, whereas most other E. coli tend to gather primarily in the colon. Given that, we might presume that the production of E. coli O157:H7 depends more on its unique location than on what its cow host happens to be eating. [/QUOTE]
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