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The objective of this study was to determine whether the presence of distillers grain (DGS) in the diet or the level of neutral detergent fiber (NDF) affects shedding of enterohemorrhagic Escherichia coli (EHEC) in feedlot steers., American Association of Bovine Practitioners Proceedings of the Annual Conference, 2016

The objective of this study was to describe the probability of detecting seven serogroups of enterohemorrhagic Escherichia coli (EHEC-7) of public health importance in fecal samples from beef cow-calf herds and to identify explanatory factors., American Association of Bovine Practitioners Proceedings of the Annual Conference, 2017

Hides of cattle at slaughter serve as an important source for carcass contamination by enterohemorrhagic Escherichia coli (EHEC). The objective of this study was to determine whether the presence of distillers grains (DGS) or the level of neutral detergent fiber (NDF) affects hide contamination by EHEC prior to slaughter in feedlot steers., American Association of Bovine Practitioners Proceedings of the Annual Conference, 2016

Cattle hides at slaughter are an important source of enterohemorrhagic Escherichia coli (EHEC) carcass contamination. The objective of this study was to estimate the probability for hide contamination with EHEC-7 among US market beef cows at slaughter, as well as test the effects of season and geographic region., American Association of Bovine Practitioners Proceedings of the Annual Conference, 2016

Escherichia coli 0157:H7 (STEC 0157) is an important foodborne pathogen of humans. Cattle are sub-clinically colonized with STEC 0157 at the terminal rectal mucosa (TRM). Live cattle serve as an important reservoir for human exposure, but it is unknown if health or performance characteristics of cattle predict their risk for colonization. Our objective was to test if disease during the finishing phase, growth performance, or carcass quality measurements at harvest increased the odds of E. coli TRM colonization at the time of slaughter., American Association of Bovine Practitioners Proceedings of the Annual Conference, 2014

Shiga-toxin producing Escherichia coli 0157:H7 (STEC 0157) is an enteric bacterium that can cause severe illness in humans. Cattle are important asymptomatic reservoirs for direct or indirect human exposure to STEC 0157. The STEC 0157 colonize the terminal rectum mucosa (TRM) of cattle, and colonized cattle have been defined as super-shedders because while colonized they are an important source of STEC 0157 to other cattle in the population. At harvest, hide-to-carcass transfer of STEC 0157 presents an important risk for beef contamination and human foodborne exposure. Our objective was to determine factors that increase prevalence of hide contamination., American Association of Bovine Practitioners Proceedings of the Annual Conference, 2014