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    Evolutionary Biology

The E. Coli Made Me Do It

In May of 2000, heavy rains pummeled Walkerton, Ontario, a town of around five thousand people located a hundred miles northwest of Toronto. Excrement from cattle containing the bacteria E. coli and campylobacter washed into the municipal water supply. An epidemic of bacterial dysentery ensued; nearly half the residents became ill and seven people died.


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