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 37 for “"listeriosis"”.
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The Role of IL-4 Receptor Alpha signalling on Foxp3 T Regulatory cells in Listeriosis and Tuberculosis
… towards the observed protection against listeriosis. Subsequently, we investigated the role of IL-4Rα on Foxp3 T reg cells in Mycobacterium tuberculosis infection. To our surprise, in contrast to Lm infection, survival Survival of Mtb-infected Foxp3creIL-4Rα-/lox mice was similar to …
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Sample preparation methods and molecular based detection for the rapid isolation and identification of Listeria monocytogenes in food samples
… is a Gram-positive bacterium responsible for listeriosis, a food-borne disease, which may result in severe illness and possible death. The importance of L. monocytogenes as a food-borne pathogen has been recognized since the 1980's when a correlation between the cunsumption of contaminated …
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Potential Antimicrobials for Controlling Listeria monocytogenes in Frankfurters
… is a pathogenic microorganism that causes Listeriosis. Listeriosis is a highly mortal disease with approximately 20% mortality rate. Listeria is psychrophilic, therefore it is able to survive in the refrigerator. This affects foods at cool storage such as fresh produce and RTE meats. To …
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Risk Assessment for Listeria monocytogenes in Ready-to-eat Meat and Poultry Products
… and poultry processing environment to mitigate listeriosis were evaluated using a dynamic in-plant Monte Carlo model. These control methods included food contact surface testing, sanitation, post-processing lethality treatment, and product formulation with microbial growth inhibitors. The …
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How Listeria monocytogenes crosses host cell barriers
… is a bacterial pathogen that causes listeriosis, a severe food-borne illness that can cause severe complications and mortality in immunocompromised or pregnant people. Listeria is able to cross several host barriers to cause severe disease, including the intestinal barrier, the …
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The Role of The C5A Receptor In Host Defense Against Listeria Monocytogenes
… component C5 is known to be protective in listeriosis, it is unknown how its cleavage fragment C5a participates. Here we show in a model of systemic Lm<em> </em>infection that the C5a receptor is essential for host defense. C5aR-/- mice have reduced survival and increased bacterial burden …
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The application of molecular techniques for the rapid and sensitive detection of gastrointestinal pathogens directly in food
… for the sensitive non-cultural diagnosis of listeriosis, with L monocytogenes detected in 15 of 17 clinical samples from patients with suspected listeriosis. In conclusion, these assays provided a high throughput, robust, reliable PCR detection methods that could be used in clinical and food …
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The Effects Of The Estrus Cycle On Microbiota Composition And The Opportunistic Pathogen Listeria Monocytogenes Infection Process In Murine Models
… the intestinal lumen and subclinical noninvasive listeriosis. However, translocation of L. monocytogenes across the intestinal epithelium produces invasive systemic listeriosis with central nervous system involvement. Little is known of the gastrointestinal stages of L. monocytogenes pathogenesis. …
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Characterization of virulence-attenuated Listeria monocytogenes common among food and food-associated environments but rarely associated with disease
… which have been linked to the majority of listeriosis cases and (ii) a significant subpopulation of strains commonly isolated from foods that carry virulence-attenuating (VA) SNPs in inlA. These mutations therefore represent suitable genetic markers to identify L. monocytogenes isolates …
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A role of statins against listeria monocytogenes and Mycobacterium tuberculosis infection
… in the acute phase of infection during listeriosis and tuberculosis. Furthermore, we found decreased growth of Mtb in peripheral blood mononuclear cells (PBMC) and monocyte†derived macrophages (MDM) isolated from patients with familial hypercholesterolemia (FH) on statin therapy when …
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Mitigating Prevalence and Persistence of L. monocytogenes using Novel Sanitation Strategies in Delis
… predicted to cause 83% of deli meat-associated listeriosis cases annually. While <em>L. monocytogenes </em>is commonly found in delis (55-90%), environmental prevalence varies by store (0-40%). Study 1 evaluated efficacy of 10 standardized SSOPs by testing 28 food and non-food contact surfaces …
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Exploration of the transcriptomes and functional contributions of Listeria monocytogenes plasmids during food production-associated stress conditions
… is the causative agent of the foodborne disease listeriosis, which is often fatal in susceptible individuals. The persistence of L. monocytogenes in the food production environment (FPE), defined as the repeated isolation of the same strain over several months, leads to the reoccurrence of food …
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Applied epidemiology of infectious diseases in Australia
… projects. My review of the National Enhanced Listeriosis Surveillance System (NELSS) found that it had been invaluable in listeriosis surveillance in Australia since 2010. It has been used not only to detect clusters and outbreaks but has also assisted in the identification and investigation …
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Applied epidemiology of infectious diseases in Australia
… projects. My review of the National Enhanced Listeriosis Surveillance System (NELSS) found that it had been invaluable in listeriosis surveillance in Australia since 2010. It has been used not only to detect clusters and outbreaks but has also assisted in the identification and investigation …
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Improving the efficacy of nisin to control Listeria monocytogenes in queso fresco
… HSCs have been linked to historical and recent listeriosis outbreaks. Since 2008, about one out of every five listeriosis outbreaks in the U.S. have been associated with the consumption of HSC, this is higher than for other ready-to-eat foods and other types of cheeses, highlighting the health …
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Defining the tropism of Listeria monocytogenes using a comparative genomics approach
… these isolates more prevalent in cases of human listeriosis.
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The control, survival, and growth of Listeria monocytogenes on food products
… years ago. It is the source of the human disease listeriosis. The majority of Listeria monocytogenes that have been isolated from food product or human cases are of the serotypes ½ a, ½ b and 4b. Due to the recent outbreaks, recalls and deaths associated with Listeria monocytogenes in ready-to-eat …
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Effects of Cavitation on the Removal and Inactivation of Listeria and Salmonella from the Surface of Tomatoes and Cantaloupe
… that can cause human illnesses, including listeriosis and salmonellosis. Microbial pathogens may attach and form biofilms on raw fruit surfaces and can be difficult to remove. A cavitation process (formation of bubbles in water) was studied for its effectiveness for removal and inactivation …
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Use of Ultraviolet Light for the Inactivation of Listeria monocytogenes and Lactic Acid Bacteria Species in Recycled Chill Brines
… have been implicated in several foodborne listeriosis outbreaks. Microbial contamination of these products can occur after the product has been thermally processed and is being rapidly chilled using salt brines. The objective of this study was to determine the effect of ultraviolet …
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Development of gold nanoparticles based lateral flow assay for detection of food and water-borne pathogens
… followed by Campylobacter and Listeria. Listeriosis cases were reported in 2017 in Gauteng province, and the number of infected persons rapidly escalated nationwide prompting an investigation wherein a total of 937 cases were identified. Early detection of pathogens in food and water …
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