Study on the Verotoxin-producing Escherichia coli
نویسندگان
چکیده
منابع مشابه
Factors associated with fecal shedding of verotoxin-producing Escherichia coli O157 on dairy farms.
Fecal samples were collected from 4,361 dairy cows on 91 dairy operations between 26 February and 8 July 1996. Fecal samples were cultured for Escherichia coli O157, and positive isolates were probed for verotoxin-producing genes. A total of 52 (1.2%) fecal samples on 22 (24.2%) operations were positive for verotoxin-producing E. coli O157. Herds in which samples were collected on or after 1 Ma...
متن کاملPrevalence and molecular characterization of verotoxin-producing Escherichia coli O157:H7 in cattle and sheep in Shiraz-Iran
Shiga toxin producing Escherichia coli have been associated with HUS, HC and TTP in human. We found recto-anal mucosal sample in sheep as well in cattle is the main site for E. coli O157 localization. 1246 E. coli isolates from 872 both healthy and diarrheic animals were analyzed, by screening for the presence of Shiga toxin-producing (VT 1 and VT 2) and intimin (eae) genes used Multiplex PCR. ...
متن کاملImmunocompromise in gnotobiotic pigs induced by verotoxin-producing Escherichia coli (O111:NM).
A verotoxin-producing Escherichia coli serotype O111:NM strain (strain 10049; verotoxin 1 positive) persistently infected experimentally inoculated gnotobiotic pigs, causing attaching-effecting intestinal lesions and chronic diarrhea. Experiments were performed to determine whether persistent infection might be associated with immunocompromise of the host of this organism. Pigs inoculated with ...
متن کاملLoss of O157 O antigenicity of verotoxin-producing Escherichia coli O157:H7 surviving under starvation conditions.
Verotoxin (VT)-producing Escherichia coli O157:H7 was culturable on agar media after being left in water for 21 months. However, there were a number of colonies which had lost O157 O antigenicity. These colonies produced VTs, which are pathogenic to humans. These observations suggest that the immunologic methods based on O157 O antigenicity are unable to detect and isolate VT-producing E. coli ...
متن کاملDoes levofloxacin induce hemolytic uremic syndrome in patients infected with verotoxin-producing Escherichia coli O157 infections?
Fifteen Japanese colitis patients, aged above 16 years old, infected with verotoxin-producing Escherichia coli O157 (VTEC O157) were divided into 2 treatment groups. Of the 15 patients, 6 (mean ± SD, 41.3 ± 19.0 years old) were treated with levofloxacin (LVFX), while the remaining 9 patients (32.0 ± 10.0 years old) were not treated with any antimicrobial agents. All patients complained of ab...
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ژورنال
عنوان ژورنال: Journal of the Japanese Association for Infectious Diseases
سال: 1999
ISSN: 1884-569X,0387-5911
DOI: 10.11150/kansenshogakuzasshi1970.73.1140