نتایج جستجو برای: ecoli o157

تعداد نتایج: 6123  

Journal: :DNA research : an international journal for rapid publication of reports on genes and genomes 2006
Yoshitoshi Ogura Ken Kurokawa Tadasuke Ooka Kousuke Tashiro Toru Tobe Makoto Ohnishi Keisuke Nakayama Takuya Morimoto Jun Terajima Haruo Watanabe Satoru Kuhara Tetsuya Hayashi

Escherichia coli O157, an etiological agent of hemorrhagic colitis and hemolytic uremic syndrome, is one of the leading worldwide public health threats. Genome sequencing of two O157 strains have revealed that the chromosome is comprised of a 4.1 Mb backbone shared by K-12 and a total of 1.4 Mb O157-specific sequences. Most of the large O157-specific sequences are prophages and prophage-like el...

2013
Michael B. Cooley Michele Jay-Russell Edward R. Atwill Diana Carychao Kimberly Nguyen Beatriz Quiñones Ronak Patel Samarpita Walker Michelle Swimley Edith Pierre-Jerome Andrew G. Gordus Robert E. Mandrell

During a 2.5-year survey of 33 farms and ranches in a major leafy greens production region in California, 13,650 produce, soil, livestock, wildlife, and water samples were tested for Shiga toxin (stx)-producing Escherichia coli (STEC). Overall, 357 and 1,912 samples were positive for E. coli O157:H7 (2.6%) or non-O157 STEC (14.0%), respectively. Isolates differentiated by O-typing ELISA and mul...

Journal: :Veterinaria México OA 2022

Escherichia coli is one of the most important bacteria associated with consumption meat products causing human disease, bovines as main reservoir for this organism. Microbiological quality raw sampled at slaughterhouses was evaluated by measuring presence serogroups that produce Shiga toxin (referred to STEC), including both O157:H7 and non-O157 strains can cause Hemolytic Uremic Syndrome (HUS)...

Journal: :Journal of applied microbiology 2011
J Patel M Sharma S Ravishakar

AIM To investigate the effect of curli expression on cell hydrophobicity, biofilm formation and attachment to cut and intact fresh produce surfaces. METHODS AND RESULTS Five Escherichia coli O157:H7 strains were evaluated for curli expression, hydrophobicity, biofilm formation and attachment to intact and cut fresh produce (cabbage, iceberg lettuce and Romaine lettuce) leaves. Biofilm formati...

2014
Ki-Eun Lee Woo-Seog Jeong Seong-In Lim Yong-Kuk Kwon Jin-San Moon Soo-Yeon Cho Jae-Young Song Dong-Jun An Se-Ryun Kim

E. coli O157 is responsible for a number of human infections through the consumption of foods of animal origin, particularly those originating from cattle. Food poisoning by Escherichia coli O157 causes diarrhea, bloody stools and abdominal pain in humans, and may lead to severe kidney failure or brain injury. For these reasons, E. coli O157 has been the subject of increasingly stringent intern...

2012
Ebrahim Rahimi Hamid Reza Kazemeini Mohammad Salajegheh

Enterohemorrhagic Escherichia coli (EHEC) of the O157:H7 serotype is a worldwide zoonotic pathogen responsible for the majority of severe cases of human EHEC disease. The aim of the present study was to investigate the prevalence of E. coli O157: H7/NM in raw meat samples from two provinces of Iran. During a period from March 2010 to March 2011. Two hundred and ninety five raw meat samples were...

Journal: :Applied and environmental microbiology 1999
I T Kudva S Jelacic P I Tarr P Youderian C J Hovde

Escherichia coli O157 antigen-specific bacteriophages were isolated and tested to determine their ability to lyse laboratory cultures of Escherichia coli O157:H7. A total of 53 bovine or ovine fecal samples were enriched for phage, and 5 of these samples were found to contain lytic phages that grow on E. coli O157:H7. Three bacteriophages, designated KH1, KH4, and KH5, were evaluated. At 37 or ...

Journal: :Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2009
L Hannah Gould Linda Demma Timothy F Jones Sharon Hurd Duc J Vugia Kirk Smith Beletshachew Shiferaw Suzanne Segler Amanda Palmer Shelley Zansky Patricia M Griffin

BACKGROUND Hemolytic uremic syndrome (HUS) is a life-threatening illness usually caused by infection with Shiga toxin-producing Escherichia coli O157 (STEC O157). We evaluated the age-specific rate of HUS and death among persons with STEC O157 infection and the risk factors associated with developing HUS. METHODS STEC O157 infections and HUS cases were reported from 8 sites participating in t...

2011
Atsushi Iguchi Hiroki Shirai Kazuko Seto Tadasuke Ooka Yoshitoshi Ogura Tetsuya Hayashi Kayo Osawa Ro Osawa

Most Escherichia coli O157-serogroup strains are classified as enterohemorrhagic E. coli (EHEC), which is known as an important food-borne pathogen for humans. They usually produce Shiga toxin (Stx) 1 and/or Stx2, and express H7-flagella antigen (or nonmotile). However, O157 strains that do not produce Stxs and express H antigens different from H7 are sometimes isolated from clinical and other ...

Journal: :Journal of microbiological methods 2004
Daniel R Shelton James A Higgins Jo Ann S Van Kessel Yakov A Pachepsky Kenneth Belt Jeffrey S Karns

The use of a minimal lactose enrichment broth (MLB) in conjunction with immunomagnetic electrochemiluminescence detection (IM-ECL) was evaluated for the estimation of viable Escherichia coli O157 populations in surface water samples. In principle, E. coli O157 populations (C(initial E. coli O157)) can be derived from enrichment data according to the equation: C(initial E. coli O157) = C(initial...

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