نتایج جستجو برای: toxigenic e coli

تعداد نتایج: 1124672  

Journal: :international journal of advanced biological and biomedical research 2014
mehdi hassanshahian zahra shahi

diarrhea is an important hygienic problem in under development countries. among pathogenic agents escherichia coli is the most etiologic agent of diarrhea in children below five years old. some e. coli strains produce cytotoxins that have cytopathic effect on vero cell and identified as verotoxin. this study performs for resolve frequency of vero toxigenic escherichia coli (vtec) in kerman city...

2005

Oral rehydration solution (ORS) is lifesaving therapy for cholera and pediatric diarrhea. During a cholera epidemic in Guinea-Bissau, we evaluated the microbiologic quality of ORS prepared at a hospital and tested a simple intervention using special vessels for disinfecting tap water with bleach and for preparing, storing, and dispensing ORS. Few coliform bacteria and Escherichia coli were reco...

2017
Richard F. de Boer Mithila Ferdous Alewijn Ott Henk R. Scheper Guido J. Wisselink Max E. Heck John W. Rossen Anna M.D. Kooistra-Smid

Journal: :The American journal of tropical medicine and hygiene 1999
N A Daniels S L Simons A Rodrigues G Gunnlaugsson T S Forster J G Wells L Hutwagner R V Tauxe E D Mintz

Oral rehydration solution (ORS) is lifesaving therapy for cholera and pediatric diarrhea. During a cholera epidemic in Guinea-Bissau, we evaluated the microbiologic quality of ORS prepared at a hospital and tested a simple intervention using special vessels for disinfecting tap water with bleach and for preparing, storing, and dispensing ORS. Few coliform bacteria and Escherichia coli were reco...

Journal: :International microbiology : the official journal of the Spanish Society for Microbiology 1998
R H Vieira D P Rodrigues N S Evangelista G N Theophilo E M Reis

Bacteriological analyses of seawater from three main beaches in Fortaleza, Brazil were performed during 1997. Thirty-six samples per beach were collected for a total of 108 samples. For Meireles Beach, 44% of the samples had MPN total coliforms values of at least 1100 or over 2400/100 ml, followed by Formosa and Diários beaches showing lower counts. For fecal coliforms the highest numbers were ...

2017
Pragathi B Shridhar Isha R Patel Jayanthi Gangiredla Mark K Mammel Lance Noll Xiaorong Shi Jianfa Bai Christopher A Elkins Nancy Strockbine T G Nagaraja

Cattle harbor and shed in their feces several Escherichia coli O104 serotypes. All O104 strains examined were intimin negative and belonged to the B1 phylogroup, and some were Shiga toxigenic. We report here the genome sequences of bovine O104:H7 (n = 5), O104:H23 (n = 2), O104:H8 (n = 1), and O104:H12 (n = 1) isolates and human clinical isolates of O104:H7 (n = 5).

Journal: :ACS chemical biology 2017
Thomas P Wyche René F Ramos Alvarenga Jeff S Piotrowski Megan N Duster Simone R Warrack Gabriel Cornilescu Travis J De Wolfe Yanpeng Hou Doug R Braun Gregory A Ellis Scott W Simpkins Justin Nelson Chad L Myers James Steele Hirotada Mori Nasia Safdar John L Markley Scott R Rajski Tim S Bugni

A polyether antibiotic, ecteinamycin (1), was isolated from a marine Actinomadura sp., cultivated from the ascidian Ecteinascidia turbinata. 13C enrichment, high resolution NMR spectroscopy, and molecular modeling enabled elucidation of the structure of 1, which was validated on the basis of comparisons with its recently reported crystal structure. Importantly, ecteinamycin demonstrated potent ...

Journal: :Journal of food protection 2005
Peter Gerner-Smidt Jennifer Kincaid Kristy Kubota Kelley Hise Susan B Hunter Mary-Ann Fair Dawn Norton Ann Woo-Ming Terry Kurzynski Mark J Sotir Marcus Head Kristin Holt Bala Swaminathan

PulseNet USA is the national molecular subtyping network system for foodborne disease surveillance. Sixty-four public health and food regulatory laboratories participate in PulseNet USA and routinely perform pulsed-field gel electrophoresis of Shiga toxigenic Escherichia coli isolated from humans, food, water, and the environment on a real-time basis. Clusters of infection are detected in three...

Hamdollah Moshtaghi, Maryam Akhavan Taheri Mojtaba Bonyadian,

The aim of this study was to determine the occurrence of enterotoxigenic and enteroaggregative Escherichia coli strains and antibiotic resistance of the isolates in raw milk and unpasteurized cheese. Out of 200 samples of raw milk and 50 samples of unpasteurized cheeses, 96 and 24 strains of E. coli were isolated, respectively. Polymerase chain reaction (PCR) was used to detec...

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