نتایج جستجو برای: e coli o157

تعداد نتایج: 1123126  

2017
Mude Shecho Naod Thomas Jelalu Kemal Yimer Muktar

A cross-sectional study was carried out to determine antimicrobial drug resistance patterns of E. coli O157:H7 isolates and estimate the level of the pathogen. A total of 194 cloacae swab samples were collected randomly in two poultry farms. Standard cultural, biochemical, and serological (latex agglutination) methods were used to isolate E. coli O157:H7. The isolates were subjected to antimicr...

2012
Tamar Abuladze Manrong Li Joelle Woolston Joshua Magnone Andre Senecal Andrew M. Kropinski Alexander Sulakvelidze

Escherichia coli (E. coli) O157:H7 is a Shiga toxin producing member of enterohemorrhagic E. coli (STEC). It is a major foodborne bacterial pathogen, which was first associated with human illness during an outbreak of hemorrhagic colitis in 1982, and has been listed by the Centers for Disease Control and Prevention as a national notifiable disease since 1994. This bacterium has been estimated t...

Journal: :Journal of food protection 2007
Terrance M Arthur Joseph M Bosilevac Dayna M Brichta-Harhay Michael N Guerini Norasak Kalchayanand Steven D Shackelford Tommy L Wheeler Mohammad Koohmaraie

Hide has been established as the main source of carcass contamination during cattle processing; therefore, it is crucial to minimize the amount of Escherichia coli O157:H7 on cattle hides before slaughter. Several potential sources of E. coli O157: H7 are encountered during transportation and in the lairage environment at beef-processing facilities that could increase the prevalence and numbers...

Journal: :Foodborne pathogens and disease 2011
Jitendra Patel Manan Sharma Patricia Millner Todd Calaway Manpreet Singh

Outbreaks associated with leafy greens have focused attention on the transfer of human pathogens to these commodities during harvest with commercial equipment. Attachment of Escherichia coli O157:H7 on new or rusty spinach harvester blades immersed in spinach extract or 10% tryptic soy broth (TSB) was investigated. Bacteriophages specific for E. coli O157:H7 were evaluated to kill cells attache...

Journal: :FEMS microbiology reviews 2009
Roberto M La Ragione Angus Best Martin J Woodward Andrew D Wales

Enterohaemorrhagic Escherichia coli O157:H7 was first implicated in human disease in the early 1980s, with ruminants cited as the primary reservoirs. Preliminary studies indicated cattle to be the sole source of E. coli O157:H7 outbreaks in humans; however, further epidemiological studies soon demonstrated that E. coli O157:H7 was widespread in other food sources and that a number of transmissi...

2016
Maryam Farahmandfar Naghmeh Moori-Bakhtiari Saad Gooraninezhad Mehdi Zarei

BACKGROUND AND OBJECTIVES The most common serotype of enterohaemorrhagic Esherichia coli group or Shiga-toxin-producing E. coli is O157:H7. Domestic and wild ruminants are regarded as the main natural reservoirs. O157:H7 serotype is the major cause of gastrointestinal infections in developed countries. In this study was conducted to survey on the toxigenic E. coli O157: H7 strains in milk of in...

Journal: :New Zealand veterinary journal 2012
H Irshad A L Cookson G Hotter T E Besser S L W On N P French

AIMS To study the occurrence and spatial distribution of Shiga toxin-producing Escherichia coli (STEC) O157 in calves less than 1-week-old (bobby calves) born on dairy farms in the North Island of New Zealand, and to determine the association of concentration of IgG in serum, carcass weight, gender and breed with occurrence of E. coli O157 in these calves. METHODS In total, 309 recto-anal muc...

Journal: :Veterinary immunology and immunopathology 2007
G Bretschneider E M Berberov R A Moxley

Escherichia coli O157:H7 is an important food-borne pathogen and cause of hemorrhagic colitis and hemolytic uremic syndrome in humans. Cattle are an important reservoir of E. coli O157:H7, in which the organism colonizes the intestinal tract and is shed in the feces. Vaccination of cattle has significant potential as a pre-harvest intervention strategy for E. coli O157:H7; however, basic inform...

2017
G. Bretschneider E. M. Berberov Rodney A. Moxley

Escherichia coli O157:H7 is an important food-borne pathogen and cause of hemorrhagic colitis and hemolytic uremic syndrome in humans. Cattle are an important reservoir of E. coli O157:H7, in which the organism colonizes the intestinal tract and is shed in the feces. Vaccination of cattle has signifi cant potential as a pre-harvest intervention strategy for E. coli O157:H7; however, basic infor...

2016
Carrie E. Schmidt Smriti Shringi Thomas E. Besser Chitrita DebRoy

Escherichia coli O157:H7 is a food-borne bacterium that causes hemorrhagic diarrhea and hemolytic uremic syndrome in humans. While cattle are a known source of E. coli O157:H7 exposure resulting in human infection, environmental reservoirs may also be important sources of infection for both cattle and humans. Bacteriophage-encoded Shiga toxins (Stx) carried by E. coli O157:H7 may provide a sele...

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