نتایج جستجو برای: etec

تعداد نتایج: 910  

Journal: :The Southeast Asian journal of tropical medicine and public health 2014
Supawadi Phetkhajorn Siriwan Sirikaew Pattamarat Rattanachuay Pharanai Sukhumungoon

The detection of enterotoxigenic Escherichia coli (ETEC) in food, especially raw meat, has rarely been documented in Thailand, although the presence of this bacterial pathogen is considered of important public health concern. The quantity of ETEC in 150 meat samples collected from fresh food markets in southern Thailand were determined using a most probable number (MPN)-PCR-based quantification...

2015
Fei Liu Xi Yang Zhiyun Wang Matilda Nicklasson Firdausi Qadri Yong Yi Yuying Zhu Na Lv Jing Li Ruifen Zhang Huijuan Guo Baoli Zhu Åsa Sjöling Yongfei Hu

BACKGROUND Enterotoxigenic Escherichia coli (ETEC) is an important pathogen that causes childhood and travelers' diarrhea. Here, we present the draft genomes of four ETEC isolates recovered from stool specimens of patients with diarrhea in Beijing, China and Dhaka, Bangladesh, respectively. RESULTS We obtained the draft genomes of ETEC strains CE516 and CE549 isolated in China, and E1777 and ...

Journal: :Veterinary research 1999
B Nagy P Z Fekete

Animal diseases due to enterotoxigenic Escherichia coli (ETEC) typically appear as severe watery diarrhoea during the first few days of life (also a few days after weaning in pigs). ETEC adhere to the small intestinal microvilli without inducing morphological lesions and produce enterotoxins acting locally on enterocytes. This action results in the hypersecretion (of water and electrolytes) and...

2018
Yasmin Ara Begum Hanna A Rydberg Kaisa Thorell Young-Keun Kwak Lei Sun Enrique Joffré Firdausi Qadri Åsa Sjöling

The bacterial pathogens enterotoxigenic Escherichia coli (ETEC) and Vibrio cholerae are major causes of diarrhea. ETEC causes diarrhea by production of the heat-labile toxin (LT) and heat-stable toxins (STh and STp), while V. cholerae produces cholera toxin (CT). In this study, we determined the occurrence and bacterial doses of the two pathogens and their respective toxin expression levels dir...

2015
Jason W. Sahl Jeticia R. Sistrunk Claire M. Fraser Erin Hine Nabilah Baby Yasmin Begum Qingwei Luo Alaullah Sheikh Firdausi Qadri James M. Fleckenstein David A. Rasko

UNLABELLED Enterotoxigenic E. coli (ETEC) can cause severe diarrhea and death in children in developing countries; however, bacterial diversity in natural infection is uncharacterized. In this study, we explored the natural population variation of ETEC from individuals with cholera-like diarrhea. Genomic sequencing and comparative analysis of multiple ETEC isolates from twelve cases of severe d...

Journal: :Infection and immunity 2010
Fahima Chowdhury Yasmin A Begum Mohammad Murshid Alam Ashraful I Khan Tanvir Ahmed M Saruar Bhuiyan Jason B Harris Regina C LaRocque Abu S G Faruque Hubert Endtz Edward T Ryan Alejandro Cravioto Ann-Mari Svennerholm Stephen B Calderwood Firdausi Qadri

Vibrio cholerae O1 and enterotoxigenic Escherichia coli (ETEC) are major bacterial pathogens that cause dehydrating disease requiring hospitalization of children and adults. The cholera toxin (CT) produced by V. cholerae O1 and the heat-labile toxin (LT) and/or heat-stable toxin (ST) of ETEC are responsible for secretory diarrhea. We have observed that about 13% of hospitalized diarrheal patien...

Journal: :Journal of clinical microbiology 2005
Yasmin A Begum Kaisar A Talukder G Balakrish Nair Firdausi Qadri R Bradley Sack Ann-Mari Svennerholm

Enterotoxigenic Escherichia coli (ETEC) is very commonly a cause of acute watery diarrhea in infants and young children in Bangladesh (2). Although organisms of this type are known to be spread through food and water contaminated by feces, limited information is available on climatic factors or the presence of ETEC in surface waters (ponds, rivers, and lakes) that are used for drinking, washing...

Journal: :Journal of clinical microbiology 1990
L K Riley C J Caffrey

Enterotoxigenic Escherichia coli (ETEC) strains were readily identified in pure and mixed cultures with nonradioactive, digoxigenin-labeled DNA probes coding for heat-labile (LTI) and heat-stable (STaI, STaII, and STb) enterotoxins. Digoxigenin-labeled ETEC fragments were more sensitive than and exhibited less nonspecific background contamination than biotinylated ETEC probes.

Journal: :Microorganisms 2023

The intestinal peptide hormones guanylin (GN) and uroguanylin (UGN) interact with the epithelial cell receptor guanylate cyclase C to regulate fluid homeostasis. Some enterotoxigenic Escherichia coli (ETEC) produce heat-stable enterotoxin (ST), which induces diarrhea by mimicking GN UGN. Plasma concentrations of prohormones (proGN) UGN (proUGN) are reportedly decreased during chronic diarrheal ...

Journal: :Infection and immunity 2006
Kenneth P Allen Mildred M Randolph James M Fleckenstein

Enterotoxigenic Escherichia coli (ETEC) infections are a significant cause of diarrheal disease and infant mortality in developing countries. Studies of ETEC pathogenesis relevant to vaccine development have been greatly hampered by the lack of a suitable small-animal model of infection with human ETEC strains. Here, we demonstrate that adult immunocompetent outbred mice can be effectively colo...

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