نتایج جستجو برای: escherichia coliecoli

تعداد نتایج: 126679  

Journal: :Journal of clinical microbiology 1990
R Sunthadvanich D Chiewsilp J Seriwatana R Sakazaki P Echeverria

Escherichia coli strains isolated from children with diarrhea were collected from 16 hospitals in different districts in Thailand during 1985 and 1986 and submitted to the National Reference Laboratory. Isolates were identified by serogrouping or as enterotoxigenic E. coli (ETEC), enteroinvasive E. coli (EIEC), enteropathogenic E. coli (EPEC) adhesin factor (EAF) E. coli, or Shiga-like-toxin (S...

2012
Dong-Woo Lee Jin Gwack Seung-Ki Youn

OBJECTIVES The aim of this study is to determine the incubation period of enteropathogenic Escherichia coli (EPEC), which creates several outbreaks in a year in South Korea. METHODS We reviewed all water and food-borne outbreaks data reported to the Korea Centers for Disease Control and Prevention (KCDC) from 2009 to 2010 and determined their characteristics. Through this process, we can pres...

2010
E.I. Nweze

Diarrhoeal diseases are one of the most important causes of illness and death all over the world. In Nigeria, the aetiology of diarrhoeagenic bacteria and the virulence of various Escherichia coli pathotypes have not been well-studied because most currently-published data were from the southwestern axis of the country. In total, 520 stool samples were collected from infants, young children, and...

Journal: :Journal of clinical microbiology 2013
Sabine Delannoy Lothar Beutin Patrick Fach

Among strains of Shiga-toxin (Stx) producing Escherichia coli (STEC), seven serogroups (O26, O45, O103, O111, O121, O145, and O157) are associated with severe clinical illness in humans. These strains are also called enterohemorrhagic E. coli (EHEC), and the development of methods for their reliable detection from food has been challenging thus far. PCR detection of major EHEC virulence genes s...

2010
Marjorie Bardiau Mihai Szalo Jacques G. Mainil

Initial adherence to host cells is the first step of the infection of enteropathogenic Escherichia coli (EPEC), enterohaemorrhagic Escherichia coli (EHEC) and verotoxigenic Escherichia coli (VTEC) strains. The importance of this step in the infection resides in the fact that (1) adherence is the first contact between bacteria and intestinal cells without which the other steps cannot occur and (...

Journal: :iranian journal of microbiology 0
seyed-mehdi larrie-bagha department of biology, shahed university, tehran-qom express way, opposite imam khomeini's shrine, tehran-3319118651, iran. iraj rasooli department of biology, shahed university, tehran-qom express way, opposite imam khomeini's shrine, tehran-3319118651, iran. seyed-latif mousavi-gargari department of biology, shahed university, tehran-qom express way, opposite imam khomeini's shrine, tehran-3319118651, iran. zohreh rasooli school of medicine, shahed university, tehran-iran. shahram nazarian department of biology, shahed university, tehran-qom express way, opposite imam khomeini's shrine, tehran-3319118651, iran.

background and objectives: enterohemorrhagic escherichia coli (ehec) o157:h7 has been recognized as a major food borne pathogen responsible for frequent hemorrhagic colitis and hemolytic uremic syndrome in humans. cattle are important reservoirs of e. coli o157:h7, in which the organism colonizes the intestinal tract and is shed in the feces. objective: vaccination of cattle has significant pot...

Journal: :iranian journal of microbiology 0
taifeh hoseinzade department of biology, kerman branch, islamic azad university, kerman, iran reza ghanbarpour molecular microbiology department, faculty of veterinary medicine, shahid bahonar university, kerman, iran farokh rokhbakhsh zamin 1department of biology, kerman branch, islamic azad university, kerman, iran

background and objectives: diarrheagenic escherichia coli (dec) strains are a major cause of intestinal syndromes in the developing countries. the aim of this study was to determine the prevalence of enterotoxigenic e. coli (etec) and enteroinvasive e. coli (eiec) in relation to phylogenetic background from patients with diarrhea. materials and methods: a total of 110 e. coli isolates were obta...

Journal: :iranian journal of public health 0
r moniri a khorshidi h akbari

the emergence of multidrug resistant strains of escherichia coli has complicated treatment decision and may lead to treatment failures. from april to november 2001 we prospectively evaluated the prevalence of resistance to trimethoprim-sulfamethoxazole (sxt), gentamicin, cephalothin, ciprofloxacin, and nitrofurantoin in 220 escherichia coli isolates from patients with urinary tract infections i...

Journal: :jundishapur journal of microbiology 0
abbas mohajeri tuberculosis and lung disease research center, tabriz university of medical sciences, tabriz, ir iran yones pilehvar-soltanahmadi tuberculosis and lung disease research center, tabriz university of medical sciences, tabriz, ir iran; department of medical biotechnology, faculty of advanced medical sciences, tabriz university of medical sciences, tabriz, ir iran jalal abdolalizadeh drug applied research center, tabriz university of medical sciences, tabriz, ir iran pouran karimi neurosciences research center (nsrc), tabriz university of medical sciences, tabriz, ir iran nosratollah zarghami tuberculosis and lung disease research center, tabriz university of medical sciences, tabriz, ir iran; department of medical biotechnology, faculty of advanced medical sciences, tabriz university of medical sciences, tabriz, ir iran; tuberculosis and lung disease research center, tabriz university of medical sciences, tabriz, ir iran. tel: +98-4113378093

conclusions the obtained results indicate that rsm is an effective method for the optimization of culture conditions for hes gene expression in e. coli. results a maximum rhes mrna level of 376.16% was obtained under the following conditions: 0.6 mm iptg, 7 hours post-induction time, and 0.9 cell density before induction. the level of rhes mrna was significantly correlated with post-induction t...

Journal: :jundishapur journal of microbiology 0
muhsin jamal atta-ur-rahman school of applied biosciences (asab), national university of sciences and technology (nust), islamabad, pakistan; emerging pathogens institute (epi), university of florida (uf), florida, usa; atta -ur-rahman school of applied biosciences (asab), national university of sciences and technology (nust), kashmir highway, sector h-12, islamabad, pakistan. tel: +92-3469398028, fax: +92-5190856102 tahir hussain atta-ur-rahman school of applied biosciences (asab), national university of sciences and technology (nust), islamabad, pakistan chythanya rajanna das emerging pathogens institute (epi), university of florida (uf), florida, usa saadia andleeb atta-ur-rahman school of applied biosciences (asab), national university of sciences and technology (nust), islamabad, pakistan

results the bacteriophage, designated mj1, was isolated by testing against a clinical mdr e. coli 3 strain. the mj1 phage showed a wide range of heat and ph stability. the phage morphology, determined by transmission electron microscopy, revealed a structure comprised of a head (108 ± 0.2 nm long by 128 ± 0.5 nm wide) and a contractile tail (123 ± 0.5 nm long by 15 - 26 nm wide). these features...

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