Scientists Scrutinize Role of “Supershedder” Cattle in E. coli O157:H7 Contamination

Scientists Scrutinize Role of "Supershedder" Cattle in E. coli O157:H7 Contamination

Marcia Wood

USDA

On average, about 2 percent of the cattle grazing in a pasture, or eating high-energy rations in a feedlot pen, may be "supershedders" who shed high levels of pathogenic organisms such as Escherichia coli O157:H7 in their manure, according to research led by U.S. Department of Agriculture (USDA) scientist Terrance M. Arthur.

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