Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 40 for “"STEC"”.
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Genomische Unterschiede zwischen Shiga Toxin-Produzierenden Escherichia coli (STEC) O157:H7 und Sorbitol Fermentierenden (SF) STEC O157:H- -Stämmen
… (SF) Shiga Toxin-Produzierende Escherichia coli (STEC)-Stämme des Serotyps O157:H- stellen bedeutsame Auslöser für Durchfallerkrankungen und des lebensbedrohlichen Hämolytisch-Urämischen Syndroms (HUS) in Mitteleuropa dar. Die Virulenzfaktoren und Krankheitsbilder solcher Stämme ähneln denen von …
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E. COLI STEC MONITORING IN A ONE HEALTH APPROACH.
… of Shiga toxin-producing Escherichia coli (STEC) in dairy herds, employing a One Health approach to enhance surveillance and public health interventions. Recognizing the significant public health threat posed by STEC, particularly its association with severe gastrointestinal diseases and …
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MOL-PCR For SNP Based Detection and Characterization of STEC non-O157 Strains
Shiga toxin-producing Escherichia coli (STEC) strains are important food-borne pathogens that have been linked to human illness. In the United States, STEC O157:H7 strains have been attributed to the majority of disease and outbreaks; however, the frequency of disease associated with STEC non-O157 …
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Isolation And Molecular Characterization Of Shiga Toxin Producing Escherichia coli In Cattle, Water And Diarrhoeal Children From The Pastoral Systems Of Southwestern Uganda
… study describes the molecular characteristics of STEC isolated from the pastoralist community of Nyabushozi in Southwestern Uganda. Faecal samples or rectal swabs of children with diarrhoea obtained in phases 1 and 2 were investigated for the presence of STEC by PCR detection of stx genes. During …
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Surface Directed Monoclonal Antibodies against STEC Aid in the Reduction of Pathogen Detection Times from Food and Water
… the detection of Shiga toxin producing E. coli (STEC) are time consuming and tedious, taking up to 5 days before a positive sample can be confirmed. The goal of this project was to streamline the detection procedure for serogroup O157 and 6 important non-O157 serogroups of STEC. Following a short …
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Integrating Spatial and Temporal Methods Into Surveillance for Shiga Toxin Producing Escherichia Coli (Stec) O157:H7 in Illinois
Temporal and spatial clustering was identified for sporadic cases. Temporal patterns showed an increase in cases from late spring to early fall annually. Areas of decreased risk were found in the southern third of the state and the most urban areas surrounding Chicago. Risk factors associated with …
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Genomic Approaches for the Characterization of Shiga-toxigenic Escherichia coli (E. coli)
… and loss of life. Shiga-toxigenic E. coli (STEC) are a significant cause of foodborne illness in Canada, and consequently, it is of high priority to improve detection, isolation, and characterization methods to mitigate their impact on public health. While current methods generally provide …
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Shiga Toxin-Producing Escherichia coli: a Public Health Challenge in the Pre-Harvest Stage of the Farm-to-Table Continuum
… are commensal, Shiga toxin-producing E. coli (STEC) can cause severe human illness. Pathogenicity of STEC is associated with genes such as those encoding Shiga toxins, enterohemolysin, and intimin. By targeting these genes, highly sensitive molecular-based techniques help detect potentially …
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Development of 11-plex assay for the rapid screening of samples for detection of Shiga toxin-producing E. coli
Shiga toxin-producing Escherichia coli (STEC) have been identified by the USDA as a serious threat to the nations health stemming from contaminations in the food supply, specifically, the beef chain. I have developed an assay that is able to screen samples for STEC in a rapid and multiplexed …
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One Health-One City; the extent of Shiga-toxin producing Escherichia coli in Cape Town
The estimated global burden of STEC (Shiga toxin producing Escherichia coli) is 2,481,511 illnesses, 269 deaths, and 26,827 DALYs with 48% of these being foodborne. This thesis provides information on STEC diagnostic strategy, undetected STEC in a tertiary referral hospital in Cape Town, and the …
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Jautienoje aptiktų Šiga toksiną išskiriančių Escherichia coli identifikavimas ir genominė analizė /
Shiga toxin-producing Escherichia coli (STEC) is one of the most common foodborne pathogens, characterized by the synthesis of Stx1 and/or Stx2 toxins. STEC is associated with numerous human diseases worldwide, ranging from mild diarrhea to hemorrhagic colitis (HC), hemolytic uremic syndrome (HUS) …
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Characterization of Shiga-toxin Producing Escherichia coli Infections and Cryptosporidiosis in South Dakota with Respect to Animal Exposures, 2012
… producing strains of <em>Escherichia coli</em> (STEC) and <em>Cryptosporidium</em> spp. are significant causes of illness in humans. Incidence rates of these illnesses are higher in South Dakota than in the United States as a whole. Transmission of these agents to people through direct contact …
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Beschreibung und Charakterisierung einer neuen Pathogenitätsinsel, integriert in das selC-Gen von "Locus of enterocyte effacement"-negativen, Shiga-Toxin-produzierenden Escherichia coli
Shiga Toxin-produzierende Escherichia coli (STEC) verursachen Diarrhöen und hämorrhagische Colitis. Als lebensbedrohliche Komplikation können sie ein hämolytisch-urämisches Syndrom auslösen. Bisher identifizierte Virulenz-faktoren der STEC sind auf Bakteriophagen, Plasmiden und Pathogenitätsinseln …
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Effects of low molecular weight compounds on growth, virulence gene expression and cytotoxic activity of Shiga toxin-producing Escherichia coli O157:H7
… Shiga toxin-producing Escherichia coli (STEC) infections are clinically associated with hemorrhagic colitis (HC) and hemolytic uremic syndrome (HUS), and are the leading cause of acute renal failure in children. A series of novel low molecular weight chemical compound (LMWC) capable of …
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Avaliação da qualidade e inocuidade do leite cru e de queijos de propriedades leiteiras do Estado do Rio de Janeiro
… de Escherichia coli produtora de toxina Shiga (STEC). Além disso, avaliar a resistência a antimicrobianos nas Enterobacterales e Staphylococcus spp. Mastite subclínica (MSC) foi um dos parâmetros de qualidade investigados, onde o leite cru de cada quarto mamário foi avaliado usando o California …
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Agent-based and contact network modeling applications for Escherichia coli transmission in commercial feedlot settings
Shiga toxin-producing Escherichia coli (STEC) are recognized as a major food-borne pathogens with outbreaks, human infections, and occasional deaths associated with the consumption of contaminated foods. Cattle are recognized as a primary reservoir for STEC, though the transmission dynamics of STEC …
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Assessment of consumers' knowledge, attitudes, awareness, and beliefs of food handling and beef safety handling behaviors
… are Shiga-toxin producing Escherichia coli (STEC). STEC are associated with approximately 265,000 illnesses and 3,600 hospitalizations annually. Since 2006, there have been 6 STEC outbreaks in the United States and 18 cases in Canada attributed to MT beef (MTB). The pathogen has also been …
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Meta-Analysis on the Effect of Interventions Used in Cattle Processing Plants to Reduce Escherichia coli Contamination in Beef
… research on Shiga-toxin Escherichia coli (STEC) contamination in beef for the benefit of public health. The QMRA operates as a 2nd order Monte Carlo simulation to create stochastic mathematical models that incorporate all of the key components of STEC contamination from farm to fork. The …
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Impacts of low-water activity food type on inactivation kinetics and models of foodborne pathogens treated with low-temperature, vacuum-assisted steam processing
… and Shiga toxin-producing Escherichia coli (STEC) contamination. The low-temperature steam treatments successfully reduced all pathogens by >4 log CFU/g from the surfaces of the foods. Additionally, Pediococcus acidilactici, proved to be a surrogate organism for these pathogens and could be …
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Charakterisierung und Antibiotika-Resistenzprofil von Shiga Toxin-produzierenden Escherichia coli Isolaten von Patienten und Ausscheidern
Einhundertvierundvierzig STEC-Stämme von Patienten mit hämolytisch-urämischem Syndrom (68 Stämme), von Durchfallpatienten (42 Stämme) und von asymptomatischen Ausscheidern (44 Stämme) wurden im Rahmen dieser Arbeit auf ihre Antibiotika-empfindlichkeit hin untersucht. Zu den insgesamt 13 getesteten …
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