| e. coli o157:h7 in kansas, january 1993 to september 1994. | | 1994 | 7884981 |
| escherichia coli o157:h7 infections in kansas, 1994-1995. | | 1997 | 9210833 |
| prevalence of escherichia coli o157:h7 in white-tailed deer sharing rangeland with cattle. | to determine the prevalence of fecal shedding of escherichia coli o157:h7 in white-tailed deer (odocoileus virginianus) with access to cattle pastures. | 1999 | 10496130 |
| prevalence of escherichia coli o157:h7 in range beef calves at weaning. | 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. fifteen range cow-calf herds, which weaned calves in october and november, were sampled in kansas, missouri, montana, nebraska and south dakota. faecal culture for e. coli o157:h7 was performed and anti-o157 serum antibody titres were determined by blocking elisa. thirteen of the 15 herds (87%) were found to ... | 1999 | 10579450 |
| results of a longitudinal study of the prevalence of escherichia coli o157:h7 on cow-calf farms. | to describe the frequency and distribution of escherichia coli o157:h7 in the feces and environment of cow-calf herds housed on pasture. | 2000 | 11108182 |
| distribution of escherichia coli o157:h7 within and among cattle operations in pasture-based agricultural areas. | to determine the distribution of escherichia coli o157:h7 in pasture-based cattle production areas. | 2004 | 15524323 |
| outbreak of escherichia coli o157:h7 infections associated with nonintact blade-tenderized frozen steaks sold by door-to-door vendors. | steaks have not been recognized as an important vehicle of escherichia coli o157:h7 infection. during 11 to 27 june 2003, the minnesota department of health (mdh) identified four o157 infection cases with the same pulsed-field gel electrophoresis (pfge) subtype. all four case patients consumed brand a vacuum packed frozen steaks sold by door-to-door vendors. the steaks were blade tenderized and injected with marinade (i.e., nonintact). information from single case patients in michigan and kansas ... | 2005 | 15954707 |
| seasonal prevalence of escherichia coli o157:h7 in beef cattle feces. | cattle are an asymptomatic reservoir of escherichia coli o157:h7, but the bacterial colonization and shedding patterns are poorly understood. the prevalence and shedding of this human pathogen have been reported to be seasonal with rates typically increasing during warm months. the objectives of this study were (i) to assess the prevalence of e. coli o157:h7 in feces of feedlot cattle in kansas during summer, fall, and winter months, and (ii) to characterize e. coli o157:h7 by screening for viru ... | 2006 | 17186673 |
| escherichia coli, salmonella, and mycobacterium avium subsp. paratuberculosis in wild european starlings at a kansas cattle feedlot. | the prevalence of escherichia coli, salmonella spp., and mycobacterium avium subsp. paratuberculosis isolated from the feces of wild european starlings (sturnus vulgaris) humanely trapped at a feedlot in central kansas was assessed. all e. coli and salmonella isolates recovered were tested for antimicrobial susceptibility using national antimicrobial resistance monitoring system panels and the e. coli isolates were classified as to their content of genes associated with pathogenic e. coli of bir ... | 2009 | 20095155 |
| genetic variations in shiga toxin-producing abilities of bovine and human escherichia coli o157:h7. | cattle are a primary reservoir of escherichia coli o157:h7, a major foodborne pathogen. the organism causes haemorrhagic colitis which can lead to serious complications, including haemolytic-uraemic syndrome. although e. coli o157:h7 is widely prevalent in cattle and cattle environments, the number of human cases remain relatively low, suggesting possible strain diversity and differences in virulence between human and bovine strains. shiga toxins, stx1 and stx2, are the major virulence factors. ... | 2011 | 20819202 |