Answer:
C. The unsanitary conditions in cattle feedlots.
Explanation:
E. coli O157:H7 is a type of bacteria that can cause several symptoms in humans, including abdominal cramps, bloody diarrhea and vomiting. While most adults can recover from it easily, young children and older adults can develop serious complications. One of the reasons why this bacteria spread in the United States was due to the unsanitary conditions in cattle feedlots.
Answer:
Suspision
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