Sargeant, J.M.Gillespie, J.R.Hyatt, D.R.Galland, J.C.Bohra, L.K.Oberst, Richard D.Phebus, Randall K.Hays, Michael P.2010-09-022010-09-022010-09-02http://hdl.handle.net/2097/4778Fecal samples from cows and calves and samples of water sources were collected monthly for 8 months from 10 Kansas cow-calf farms to determine the prevalence of E. coli O157:H7. The bacterium was found in 8% of fecal samples from cows that were within 24 hours of calving, 1.4% of fecal samples from cows which were not within 24 hours of calving, 1.4% of calf fecal samples, and 1.5% of water samples. E. coli O157:H7 was identified from at least one sample on all farms.BeefCow-calf herdsE. coli O157:H7Bacterial infectionConference paper