Year-round Monitoring of Verotoxin-producing Escherichia coli from Feces of Dairy Cattle
نویسندگان
چکیده
منابع مشابه
Prevalence of Verotoxin-Producing Escherichia coli (VTEC) in a survey of dairy cattle in Najaf, Iraq
BACKGROUND AND OBJECTIVES Dairy cattle have been implicated as principal reservoir of Verotoxin-Producing Escherichia coli (VTEC), with undercooked ground beef and raw milk being the major vehicles of food borne outbreaks. VTEC has been implicated as an etiological agent of individual cases and outbreaks in developed countries. This study was designed to determine the prevalence of VETEC in dia...
متن کاملprevalence of verotoxin-producing escherichia coli (vtec) in a survey of dairy cattle in najaf, iraq
background and objectives: dairy cattle have been implicated as principal reservoir of verotoxin-producing escherichia coli (vtec), with undercooked ground beef and raw milk being the major vehicles of food borne outbreaks. vtec has been implicated as an etiological agent of individual cases and outbreaks in developed countries. this study was designed to determine the prevalence of vetec in di...
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 کاملFactors 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 کاملSubtilase cytotoxin-coding genes in verotoxin-producing Escherichia coli strains from sheep and goats differ from those from cattle.
Subtilase cytotoxin (SubAB) from verotoxin (VT)-producing Escherichia coli (VTEC) strains was first described in the 98NK2 strain and has been associated with human disease. However, SubAB has recently been found in two VT-negative E. coli strains (ED 591 and ED 32). SubAB is encoded by two closely linked, cotranscribed genes (subA and subB). In this study, we investigated the presence of subAB...
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ژورنال
عنوان ژورنال: Asian-Australasian Journal of Animal Sciences
سال: 2007
ISSN: 1011-2367,1976-5517
DOI: 10.5713/ajas.2007.789