Prevalence of Escherichia coli O157:H7 in range beef calves at weaning.

Prevalence of Escherichia coli O157:H7 in range beef calves at weaning.

W. W. Laegreid, R. O. Elder, J. E. Keen

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This study was designed to determine the prevalence of Escherichia coli O157:H7 infection of beef calves at weaning, prior to arrival at the feedlot or mixing with cattle from other sources.

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