| a multistate outbreak of escherichia coli o157:h7 infections associated with consumption of mesclun lettuce. | an outbreak of escherichia coli o157:h7 infections in connecticut and illinois during may 28 to june 27, 1996, was investigated to determine the source of infections. | 1999 | 10448779 |
| escherichia coli o157:h7 prevalence in fecal samples of cattle from a southeastern beef cow-calf herd. | the proportion of fecal samples culture-positive for escherichia coli o157:h7 was determined for samples collected from 296 beef cows on pasture in a single florida herd in october, november, and december 2001. the overall proportion of samples that cultured positive was 0.03. the proportion of cows that were culture-positive on at least one occasion was 0.091. no effect of pregnancy status or nutritional regimen on the proportion of culture-positive samples for e. coli o157:h7 was detected. we ... | 2003 | 14572213 |
| outbreaks of escherichia coli o157:h7 associated with petting zoos--north carolina, florida, and arizona, 2004 and 2005. | during 2004-2005, three outbreaks of escherichia coli o157:h7 infections occurred among agricultural fair, festival, and petting zoo visitors in north carolina, florida, and arizona. one hundred eight cases, including 15 cases of hemolytic uremic syndrome (hus), were reported in the north carolina outbreak; 63 cases, including seven hus cases, were reported in the florida outbreak; and two cases were reported in arizona. no fatalities occurred. illnesses primarily affected children who visited p ... | 2005 | 16371942 |
| fecal shedding of foodborne pathogens by florida-born heifers and steers in u.s. beef production segments. | the objective in this study was to assess breed effects in fecal prevalence of escherichia coli o157:h7 in heifers on a development program in florida and in their steer half siblings in stocker and feedlot phases in oklahoma. a secondary objective was to characterize fecal shedding of campylobacter and salmonella in subsets of the same samples. after weaning, heifers (n = 501; purebreds and f1 crosses of angus, brahman, and romosinuano) were preconditioned and placed in a local development prog ... | 2008 | 18468037 |
| regrowth of potential opportunistic pathogens and algae in reclaimed-water distribution systems. | a study of the quality of reclaimed water in treated effluent, after storage, and at three points in the distribution system of four plants in california, florida, massachusetts, and new york was conducted for 1 year. the plants had different treatment processes (conventional versus membrane bioreactor), production capacities, and methods for storage of the water, and the intended end uses of the water were different. the analysis focused on the occurrence of indicator bacteria (heterotrophic ba ... | 2010 | 20453149 |