When U.S. experiences an E. coli outbreak, a strain called O157:H7 is usually the culprit. But the bacteria implicated in a lettuce recall belong to a strain called O145, which is tougher to detect.
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Read the complete post at http://www.npr.org/blogs/health/2010/05/12/126777407/how-the-widening-lettuce-recall-is-different?ft=1&f=103537970
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May 12 2010, 10:08 AM
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