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Dissertations / Theses on the topic 'Enteric pathogen'

Author: Grafiati

Published: 3 June 2025

Last updated: 19 July 2025

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1

Aljaberi, Suuad Ali. "Molecular epidemiology of the enteric pathogen Campylobacter jejuni." Thesis, London School of Hygiene and Tropical Medicine (University of London), 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.536880.

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2

Elliott, Paul Ronald. "Structure and function of enteric pathogen glyceraldehyde-3-phosphate dehydrogenases." Thesis, University of Leicester, 2009. http://hdl.handle.net/2381/9541.

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The availability of published genomes from all domains of life has provided insight into biochemical processes for many organisms. Frequently the mapping of classical pathways onto genome-derived data is used to deduce metabolic pathways in an otherwise uncharacterised system. Whilst this method may be sufficient as a prelude to further biochemical analysis, the function of genes may be assigned by extrapolation from homologs, and this may not be correct. This study highlights the dangers of such a process, focusing on the glycolytic/gluconeogenic enzymes glyceraldehyde 3-phosphate dehydrogena

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3

Choudhry, Naheed. "Interactions between the enteric pathogen cryptosporidium parvum and intestinal epithelial cells." Thesis, Queen Mary, University of London, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.511374.

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4

Al-Ethari, Aziz Yasir Hasan. "Phosphoglycerate kinase and phosphoenolpyruvate synthase of the enteric pathogen Helicobacter pylori." Thesis, University of Leicester, 2018. http://hdl.handle.net/2381/42872.

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Helicobacter pylori is a globally distributed enteric pathogen implicated in several serious diseases. Understanding the genetics and metabolism of the pathogen is of significant importance to developing new therapies for eradication. However, its metabolism is poorly characterised. The genome lacks coding sequences of some key glycolytic enzymes, however the gluconeogenic enzymes fructose-1,6-bisphosphatase and phosphoenolpyruvate synthase (hpPPSA) are present. This suggests H. pylori uses the glycolytic/gluconeogenic pathway for anabolic biosynthesis rather than for catabolic energy producti

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5

Perez, Viana Felipe. "Soil microbial interactions affecting enteric pathogen survival in sewage sludge-amended agricultural soil." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/5872.

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The natural inactivation of enteric pathogens in soil is a critical component of the multi-barrier approach to prevent infectious disease in humans by enteric microorganisms when biosolids are used as a fertiliser and soil conditioner on agricultural land. The addition of biosolids to agricultural soil modifies the soil microbial community and ecological interactions. Ecological processes, especially the activities of predatory protozoa, may have a critical role in reducing the survival of enteric pathogenic bacteria when biosolids are applied to agricultural soil. To test this hypothesis a se

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6

Kwa, Sue Fen. "Cellular and structural factors influencing the induction of Th1 mucosal responses against an enteric pathogen." Thesis, University College London (University of London), 2006. http://discovery.ucl.ac.uk/1444909/.

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Secondary lymphoid structures are organised networks which support the generation of efficient immune responses by facilitating antigen presentation between an antigen presenting cell (APC) and an antigen-specific naive T cell. Professional APC such as dendritic cells (DC) are potent primers of T cells and have the capacity to determine the T-helper type 1 or 2 direction of the immune response. Lymphotoxin (LT) is a cytokine of the TNF family which has diverse biological roles, including one as a cytotoxic mediator of immunity. Moreover LT-mediated signals are required for the organogenesis an

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7

RAMALHETE, Sara de Castro Gonçalves. "Exploring the relationship between toxin and spore prodution in the human enteric pathogen Clostridium difficile." Master's thesis, Instituto de Higiene e Medicina Tropical, 2015. http://hdl.handle.net/10362/19069.

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Clostridium difficile é presentemente a principal causa de doença gastrointestinal associada à utilização de antibióticos em adultos. C. difficile é uma bactéria Gram-positiva, obrigatoriamente anaeróbica, capaz de formar endósporos. Tem-se verificado um aumento dos casos de doença associada a C. difficile com sintomas mais severos, elevadas taxas de morbilidade, mortalidade e recorrência, em parte, devido à emergência de estirpes mais virulentas, mas também devido à má gestão do uso de antibióticos. C. difficile produz duas toxinas, TcdA e TcdB, que são os principais fatores de virulência e

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8

Cass, James. "Field and laboratory investigations quantifying the factors responsible for enteric pathogen decay in biosolids amended agricultural soils." Thesis, Imperial College London, 2009. http://hdl.handle.net/10044/1/5507.

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The inactivation of enteric pathogens in soil is a critical component of the multibarrier approach to protect human health when biosolids are applied to agricultural land as a fertiliser. Ecological processes may have a central role in eliminating enteric bacteria applied to soil in biosolids providing an active mechanism for their removal. To test this hypothesis, and to provide long-term decay information on a variety of enteric pathogens, a series of field experiments was established on two soils of contrasting organic matter and fertility status, amended with different sludge types. E. col

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9

Lee, Andrew Seong-tae. "Type 1 diabetes (T1D) in NOD mouse models : the role of toll-like receptor 7 and an enteric bacterial pathogen in accelerating the development of T1D." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/13922.

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Enteric viruses, intestinal enteropathies and the subsequent activation of endosomal toll-like receptors (TLRs) have been implicated as triggers of type 1 diabetes (T1D). TLR7 detects single stranded RNA. TLR7 agonists can accelerate diabetes by enhancing islet expression of major histocompatibility complex (MHC) I restricted transgenic antigens but the role and source of TLR7 stimulation in promoting T1D (and reactivity to true self antigens) remains unclear. In addition, recent evidence has suggested that disruption of the intestinal barrier, a ‘leaky gut’, may provide an endogenous TLR sour

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10

Tafazoli, Farideh. "Perturbation of the epithelial barrier by enteric pathogens /." Linköping : Univ, 2001. http://www.bibl.liu.se/liupubl/disp/disp2001/med702s.pdf.

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11

Wilson, Jennifer SiaÌ‚n. "Antimicrobial resistance and enteric pathogens in companion animals." Thesis, University of Liverpool, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.423964.

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The aims of this study were to investigate the prevalence of antibiotic resistant and potentially enteropathogenic bacteria in dog faecal samples and the potential for transmission of these bacteria to humans. The general prevalence of E. coli, Sa/monella spp., Campy/obacter spp., VRE, MRSA, and their antimicrobial susceptibilities were primarily investigated by conducting a cross-sectional survey, obtaining dog faecal samples from parks, boarding and rescue kennels and households. This revealed a high prevalence of healthy dogs excreting antibiotic resistant E. coli and E. coli carrying virul

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12

Nguyen, Vu Trung. "Children's diarrhea in Hanoi, Vietnam : importance of enteric pathogens /." Stockholm, 2005. http://diss.kib.ki.se/2005/91-7140-233-0/.

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13

Karim, Mohammad Rezaul. "Survival of indicator microorganisms and enteric pathogens in wetlands." Diss., The University of Arizona, 1999. http://hdl.handle.net/10150/284066.

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Wetlands containing aquatic plants have been found to economically provide a mechanism for improving the microbial and other quality of wastewater. The purpose of this study was to elucidate the effect of vegetation and sedimentation on the survival of enteric microorganisms in constructed wetlands. The first part of this study was designed to determine the effect of vegetation on the survival of Escherichia coli, Salmonella typhimurium , bacteriophage MS-2 and poliovirus in wetlands. The organisms were added to the water from six wetland systems, containing different aquatic plants. The wetla

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14

Mahajan, Rishab. "Quantitative assessment of exposure to enteric pathogens in drinking water." University of Cincinnati / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1258472492.

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15

Adu-Bobie, Jeanette. "Characterisation of the C-terminal domain intimin from enteropathogenic Escherichia coli." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300436.

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16

Jennings, Claire Elizabeth. "Recovery of Campylobacter jejuni from cold storage." Thesis, University of Newcastle Upon Tyne, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323454.

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17

Moore, Gillian Fiona. "Factors influencing biofilm formation by Salmonella enterica serovar Enteritidis." Thesis, University of Exeter, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248173.

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18

Barkley, James Andrew. "Prevalence of Five Enteric Pathogens on Ohio Dairy Farms and Longitudinal Analysis of Calf Health Outcomes." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1555013550737254.

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19

Lee, Eun-Na. "Anti-bacterial activities of chicken egg yolk antibody, IgY, against enteric pathogens." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0005/MQ59828.pdf.

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20

Betmal, Salim Mohamed. "The fate of bacterial enteric pathogens during enhanced treatment of sewage sludge." Thesis, University of Leeds, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.406879.

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21

Viladomiu, Pujol Monica. "Transdisciplinary Strategies for the Characterization of Mucosal Immune Responses to Enteric Pathogens." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/74404.

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The gastrointestinal mucosal immune system has the daunting task of maintaining immune homeostasis by eliminating potentially harmful microorganisms and limiting tissue injury while inducing tolerogenic responses to luminal antigens including innocuous food, commensal bacteria and self-antigens. This carefully orchestrated system depends on elaborate down-regulating mechanisms that mediate and maintain a state of tolerance under normal conditions. Changes in such delicate balance are linked to the development of gastrointestinal pathology as well as systemic disease states. Despite the rapid i

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22

Luu, L. "Development of small intestinal organoid cultures for the study of enteric pathogens." Thesis, University of Liverpool, 2017. http://livrepository.liverpool.ac.uk/3015936/.

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23

Ramalivhana, J., CL Obi, MNB Momba, et al. "Antibiotic resistance profiles and relatedness of enteric bacterial pathogens isolated from HIV/AIDS patients with and without diarrhoea and their household drinking water in rural communities in Limpopo Province South Africa." African Journal of Biotechnology, 2007. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001720.

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Antibiotic resistance profiles and the correlation of enteric bacterial pathogens from HIV positive individuals with and without diarrhoea and their household drinking water were determined using the Kirby Bauer disk diffusion and polymerase chain reaction methods respectively. The sef gene of Salmonella enteritidis was amplified with the primer pair sefA-1 and sefA-2. The fliC gene of Salmonella typhimurium was amplified with the primer pair flicA-1 and flicA-2. Heat-labile toxin (LT) primers (Lta and LTb) were used to amplify Escherichia coli isolates and VirA1 and VirA2 for the Vir A gene o

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24

Khan, Mohammed Aatif. "Characterization of innate immune responses to enteric bacterial pathogens in intestinal epithelial cells." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/14854.

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Enteropathogenic Escherichia coli (EPEC) belongs to the attaching and effacing (A/E) family of bacterial pathogens, which infect intestinal enterocytes with type three secretion system (T3SS), leading to diarrheal disease. While A/E bacteria also express flagellin (FliC) which induces secretion of pro-inflammatory interleukin (IL)-8 from intestinal epithelial cells (IECs), it is unclear if flagellin is the sole trigger of epithelial responses. IECs express innate toll-like receptors (TLRs) to recognize flagellin and trigger inflammatory responses. Activation of TLRs is strictly controlled in I

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25

Constantinou, Nicholas. "Characterisation of the type III secretion system EspO effector family in enteric pathogens." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/14425.

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Many enteric pathogens employ a type III secretion system to translocate effector proteins directly into the host cell cytoplasm, where they subvert signalling pathways of the intestinal epithelium. Once inside the cell, effector proteins may interact with host cell proteins to control various cellular processes. This enables enteric pathogens to establish their infective niche within the human host. The T3SS effectors EspO of enterohaemorrhagic Escherichia coli and Citrobacter rodentium, OspE of Shigella flexnerie and SopO of Salmonella enterica Serovar Typhimurium are known to interact with

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26

Schmitz, Bradley William. "Reduction of Enteric Pathogens and Indicator Microorganisms in the Environment and Treatment Processes." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/612535.

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The reduction of pathogenic microorganisms is essential to minimize human health risks associated with the reuse, reclamation, and recycling of wastewater and the land application of biosolids (sewage sludge). The most advanced treatment technologies, as well as, the most representative methods and indicator organisms are necessary to ensure public safety. The goal of this dissertation is to assess advanced Bardenpho wastewater treatment technologies in regards to virus removal, suggest the most appropriate viral indicators of human fecal contamination and/or treatment process controls, and de

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27

Schwarz, Karen Rosemary. "The fate of human enteric pathogens following the land application of biosolids in agriculture." Thesis, Curtin University, 2012. http://hdl.handle.net/20.500.11937/1647.

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A research project was undertaken to study the effect of biosolids on the decay times of enteric pathogens in the soil. This is the most comprehensive study in Australia where the persistence of enteric microorganisms in land-applied biosolids, particularly on broadacre grain farms in Australia, has been studied.Enteric pathogens such as faecal bacteria and viruses are present in biosolids, and when applied to land, these disease-causing microorganisms are at risk of being transmitted to humans following contact. The main aim of this research project was to examine the decay times of Escherich

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28

Moseley, Tiffany Marie. "Use of flourescent surrogate organisms for enteric pathogens in validation of carcass decontamination treatments." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1311.

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29

Bisi-Johnson, Mary Adejumoke. "Molecular characterization, antibiograms and antibacterial activities of selected medicinal plants against some enteric pathogens." Thesis, Walter Sisulu University, 2011. http://hdl.handle.net/11260/d1006643.

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Diarrhea diseases remain one of the greatest health problems in many parts of the world. In some cases, the disease is mild and self-limiting; however, the symptoms may be very severe in the elderly and young children (Smith and Cheasty, 1998), as well as in immune compromised patients such as HIV/AIDS patients. The disease is one of the hallmarks of HIV/AIDS in developing countries and is also a cardinal clinical manifestation of water borne infections (Obi et al., 2007). According to a World Health Organization report (WHO, 2004), diarrhea was rated second, after respiratory infections out o

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30

Beutler, Markus [Verfasser], and Bärbel [Akademischer Betreuer] Stecher-Letsch. "Elucidating the mechanisms of dysbiosis and inflammation-induced ‘blooms’ of Salmonella enterica serovar Typhimurium and other enteric pathogens using a novel gnotobiotic mouse model / Markus Beutler ; Betreuer: Bärbel Stecher-Letsch." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2017. http://d-nb.info/115685203X/34.

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31

Drumo, Rosanna. "Study of host-pathogen-microbiota interactions on a Salmonella enterica serovar Typhimurium piglet model." Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3421786.

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Salmonella enterica serovar Typhimurium is a Gram negative gastrointestinal pathogen responsible for food poisoning worldwide. Upon entry into the host, Salmonella must overcome the robust line of defense provided by the innate immune system and by microbiota-mediated colonization resistance. It is a fascinating example of pathogen able not only to evade immune response, but also to exploit multiple aspects of it to colonize intestine. S. Typhimurium has evolved strategies allowing to thrive in the inflamed gut at the expense of the resident microbiota, taking advantage of the dramatic environ

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El-Sabbagh, Yousry Abdel Hameid H. "Development of uniplex and multiplex PCR assays for the detection of human enteric protozoan pathogens." Thesis, University of Leicester, 2010. http://hdl.handle.net/2381/9963.

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Cryptosporidium spp., Giardia lamblia and Entamoeba histolytica are the most frequently identified enteric protozoa in water-borne disease outbreaks. Many PCR assays, with satisfactory results in terms of sensitivities and specificities, have been developed for detection of the aforementioned three protozoa in faecal specimens but the majority of these assays have a limited usage in the clinical laboratories due to being more costly and more time-consuming than the conventional diagnostic methods. Based on published oligonucleotide primers, three individual uniplex PCR assays were developed, p

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Andrade, Maria Auxiliadora. "Inoculação de Salmonella enterica subespécie enterica sorovar enteritidis fagotipo 4 em ovos embrionados de duas linhagens de frango de corte." Universidade Federal de Goiás, 2006. http://repositorio.bc.ufg.br/tede/handle/tede/5449.

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Artuso-Ponte, Valeria C. "The Role of Benzo(c)phenanthridine Alkaloids on Swine-pathogen Interaction and the Epidemiology of Salmonella enterica." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1420544942.

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35

Andradae, Maria Auxiliadora. "Inoculação de salmonella enterica subespecie enterica sorovar enteritidis fagotipo 4 em ovos embrionados de duas linhagens de frango de corte." Universidade Federal de Goiás, 2005. http://repositorio.bc.ufg.br/tede/handle/tede/3269.

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Submitted by Marlene Santos (marlene.bc.ufg@gmail.com) on 2014-10-03T20:19:52Z No. of bitstreams: 2 Tese - Maria_Auxiliadora Andrade - 2005.pdf: 1009311 bytes, checksum: fc89542ce0a0fb7c6a73727f348fc5a1 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Approved for entry into archive by Jaqueline Silva (jtas29@gmail.com) on 2014-10-03T20:41:47Z (GMT) No. of bitstreams: 2 Tese - Maria_Auxiliadora Andrade - 2005.pdf: 1009311 bytes, checksum: fc89542ce0a0fb7c6a73727f348fc5a1 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Made

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Al-Habsi, Khalid Rasheed Saif. "Molecular characterisation of selected enteric pathogens and antimicrobial resistance of Salmonella in rangeland goats in Western Australia." Thesis, Al-Habsi, Khalid Rasheed Saif (2017) Molecular characterisation of selected enteric pathogens and antimicrobial resistance of Salmonella in rangeland goats in Western Australia. PhD thesis, Murdoch University, 2017. https://researchrepository.murdoch.edu.au/id/eprint/41084/.

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The Australian goat meat industry is largely supported by the sale of captured feral goats derived from rangeland production systems. Diarrhoea and ill-thrift following capture is a major issue for the industry, yet relatively little is known about the role of infectious disease and the public health significance of gastrointestinal infections. The aim of this thesis was to characterise faecal carriage of selected enteric pathogens by rangeland goats using molecular tools, and to determine potential impacts for goat productivity and public health. A longitudinal study conducted using qPCR and

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37

Mughini, Gras Lapo <1984&gt. "Food safety and zoonotic enteric pathogens: sources, risk factors and transmission routes of human salmonellosis and campylobacteriosis." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5424/1/Mughini_Gras_Lapo_tesi.pdf.

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Salmonella and Campylobacter are common causes of human gastroenteritis. Their epidemiology is complex and a multi-tiered approach to control is needed, taking into account the different reservoirs, pathways and risk factors. In this thesis, trends in human gastroenteritis and food-borne outbreak notifications in Italy were explored. Moreover, the improved sensitivity of two recently-implemented regional surveillance systems in Lombardy and Piedmont was evidenced, providing a basis for improving notification at the national level. Trends in human Salmonella serovars were explored: serovars Ent

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Mughini, Gras Lapo <1984&gt. "Food safety and zoonotic enteric pathogens: sources, risk factors and transmission routes of human salmonellosis and campylobacteriosis." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5424/.

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Salmonella and Campylobacter are common causes of human gastroenteritis. Their epidemiology is complex and a multi-tiered approach to control is needed, taking into account the different reservoirs, pathways and risk factors. In this thesis, trends in human gastroenteritis and food-borne outbreak notifications in Italy were explored. Moreover, the improved sensitivity of two recently-implemented regional surveillance systems in Lombardy and Piedmont was evidenced, providing a basis for improving notification at the national level. Trends in human Salmonella serovars were explored: serovars Ent

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PETRARCA, PATRIZIA. "Characterization of the Salmonella enterica zinc import apparatus and of its relevance in the host-pathogen interaction." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2010. http://hdl.handle.net/2108/1262.

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La capacità dei batteri di colonizzare particolari ambienti è legata alla loro capacità di sopperire alla mancanza di nutrienti essenziali per la loro crescita. Di particolare rilevanza per la salute umana e animale è capire come i batteri patogeni affrontano il problema della limitazione dei nutrienti che incontrano nell'organismo infettato, in cui diversi elementi essenziali per la sopravvivenza batterica non sono facilmente reperibili. Particolarmente difficile per i batteri patogeni è reperire metalli di transizione, in quanto questi elementi sono di solito presenti in forme che non sono f

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Wanjugi, Pauline. "Predation, Competition, and Nutrient Levels Affect the Survival of Escherichia coli, Enterococci and Enteric Pathogens in Aquatic Habitats." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4959.

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Fecal indicator bacteria (FIB) such as Escherichia coli and enterococci are used to assess microbiological water quality in recreational waters worldwide. FIB are used with the assumption that their presence correlates with that of fecal-associated pathogens in recreational waters. In aquatic habitats, several factors can interfere with the predictive relationship between FIB and pathogens including extended survival of FIB in secondary habitats such as sediment, vegetation and sand. Furthermore, many biotic (e.g. predation from bacterivorous protozoa and competition from indigenous bacteria)

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Walters, Carol. "Development and Evaluation of a Multiplex Suspension Array Protocol for the Detection of Enteric Pathogens from Clinical Specimens." VCU Scholars Compass, 2011. http://scholarscompass.vcu.edu/etd/246.

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Foodborne illnesses are a significant public health challenge in the United States, with an estimated 9.4 million illnesses annually attributed to the consumption of contaminated food, of which 59% are estimated to be caused by viruses, 39% by bacteria and 2% by parasites. Timely detection and identification of the pathogens causing foodborne outbreaks is vital for the implementation of outbreak control strategies, allowing public health officials to prevent additional illnesses and maintain confidence in the food supply. Public health laboratories employ a variety of traditional and molecul

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Ayna, Adnan. "Glyceraldehyde-3-phosphate dehydrogenase and fructose-1, 6-bisphosphatase of the enteric pathogens C. jejuni and H. pylori." Thesis, University of Leicester, 2016. http://hdl.handle.net/2381/37425.

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Campylobacter jejuni and Helicobacter pylori are pathogens which cause gastrointestinal diseases and are therefore of significant importance. However, their metabolism and physiology is relatively poorly understood. It had been noted that the genome of these pathogens lack open reading frames for some glycolytic enzymes. Notably, both pathogens lack the gene encoding phosphofructokinase (6-PFK) and thus regulation of the complementary gluconeogenic enzyme fructose-1,6-bisphosphatase (FBPase) might be different to that in the majority of organisms which retain 6-PFK. In order to further underst

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Cooper, Ashley. "Thermal Reduction of Common Food-Borne Pathogens During Composting." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32093.

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Soil amended with manure has been implicated as a source of produce contamination leading to foodborne gastrointestinal-disease outbreaks. While current composting guidelines require temperatures ≥ 55°C for 3 days to destroy bacterial pathogens, these requirements have not been evaluated for all pathogens. Investigation of parasite survival in manure required development of a flow cytometry method integrating the cell-impermeant viability dye SytoX for simultaneous quantification and viability assessment of Cryptosporidium and Giardia oocysts/cysts. Further studies will be required to apply t

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Paden, Holly Noelle. "Contamination of Fresh Produce with Human Pathogens in Domestic and Commercial Kitchens." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1525710038777157.

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Ellebracht, John Wayne. "Evaluation of peroxyacetic acid as a potential pre-grinding treatment for control of enteric pathogens on fresh beef trim." Thesis, Texas A&M University, 2004. http://hdl.handle.net/1969.1/2704.

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Peroxyacetic acid was evaluated in four separate trials for ability to reduce populations of Escherichia coli O157:H7 and Salmonella serotype Typhimurium (ATCC 13311) on fresh beef trim. Trial 1 examined the effectiveness of peroxyacetic acid on individual pieces of fresh beef trim. Trial 2 was performed to evaluate the effectiveness of peroxyacetic acid at low levels of contamination on batches of trim. Trial 3 studied the washing effect of the dip due to water. Lastly, Trial 4 compared the effectiveness of peroxyacetic acid to lactic acid. At various inoculation levels, peroxyacetic aci

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Stine, William S. "Survival of enteric pathogens on the surface of fresh produce and intake of heterotrophic bacteria in the United States." Diss., The University of Arizona, 2004. http://hdl.handle.net/10150/280656.

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Disease due to the consumption of food contaminated with enteric microorganisms has been well established. The first study described in this dissertation was designed to determine the effect of relative humidity on the pre-harvest survival of enteric pathogens on the surfaces of fresh produce. Additionally, Clostridium perfringens was evaluated as an indicator of fecal contamination on fresh produce. Pathogenic and surrogate microorganisms, including Escherichia coli O157:H7, Escherichia coli ATCC 25922, Salmonella enterica subsp. enterica, Shigella sonnei, C. perfringens, coliphage PRD1, fel

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Slabbert, R. S. "Acid tolerance and organic acid susceptibility of selected food-borne pathogens." Interim : Interdisciplinary Journal, Vol 13, Issue 2: Central University of Technology Free State Bloemfontein, 2013. http://hdl.handle.net/11462/296.

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Published Article<br>The development of tolerance to low pH levels and the existence of cross-resistance may promote survival of bacteria in acidic foodstuff and in acidic environments such as the human stomach, in so doing escalating the probability of food poisoning. Similar to antimicrobial resistance developing, there is growing concern that effectiveness of organic acids may decrease as a result of the emergence of acid-tolerant food-borne pathogens. The objectives of this study were to determine the development of acid tolerance in selected food-borne pathogenic bacteria and to explore t

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Fieselmann, Astrid [Verfasser]. "Metabolische Modellierung und systembiologische Analysen des Pathogen- und Wirtsmetabolismus : Am Beispiel von Salmonella enterica und Arabidopsis thaliana / Astrid Fieselmann." Aachen : Shaker, 2016. http://d-nb.info/1118259319/34.

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Obi, CL, J. Ramalivhana, J. Igumbor, and MNB Momba. "Scope and frequency of enteric bacterial pathogens isolated from HIV/AIDS patients and their household drinking water in Limpopo Province." Water SA, 2007. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000863.

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Although HIV/AIDS and water-borne infections, exemplified by diarrhoea, are leading causes of morbidity and mortality in developing countries, their association has received only cursory attention. This study was therefore conducted to ascertain the scope and frequency of potential enteric bacterial pathogens isolated from stool samples of HIV-positive and -negative individuals with and without diarrhoea as well as household drinking water of the study groups in rural communities in Limpopo Province. A prospective study involving 330 HIV-positive individuals (200 with diarrhoea and 130 without

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Lamola, Makgabo Stella. "Antimicrobial activity and cytotoxicity of extracts and an isolated compound from the edible plant Grewia flava against four enteric pathogens." Diss., University of Pretoria, 2015. http://hdl.handle.net/2263/52021.

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Bacterial infections of the gastrointestinal tract (GIT) causes vomiting, diarrhoea and even systemic infection. There is resistance to the commonly used antibiotics used to combat bacterial infection; there is a need for development of natural products into alternative and safer medicines. Studies have been conducted on the other species of the genus Grewia and there are reports of pharmacologically active compounds. There are no published studies up to date on Grewia flava. This study evaluated the antimicrobial activity of extracts prepared from berries, leaves, bark and roots of the edibl

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