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 16 of 16 for “"Salmonella species"”.
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Prevalence, virulence factors and antimicrobial resistance of salmonella species from beef in retail outlets from KwaZulu-Natal province, South Africa
Non-typhoid Salmonella enterica subsp. enterica serotypes are one of the leading causes of foodborne infections worldwide. Furthermore, the emergence and spread of antimicrobial-resistant Salmonellastrains is a potential global challenge. This study was aimed at determining the prevalence, …
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Prevalence of Salmonella species and Escherichia Coli O157:H7 in organically managed cattle and food safety status of selected meat products
… associated with E.coli O157:H7 outbreaks. Salmonella spp., and E.coli O157:H7 are frequently associated with ground beef. Fermented sausage products were found to be a low risk food as the manufacturing process includes several hurdles for microbial growth. In fact, most outbreaks related …
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A Multifaceted Approach to Study Salmonella Typhimurium Pathogenesis
To study Salmonella pathogenesis we used the IVET ( in vivo expression technology) system to select S. typhimurium genes that are specifically induced in the host during infection. This unique IVET selection was done in hopes of finding genes specifically induced in the aorta of BALB/c mice. In …
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Effect of cinnamon oil nano-emulsion to control the foodborne bacteria Salmonella spp. on mung beans and sprouts
Foodborne outbreaks due to Salmonella in pulses and legumes have increased recently. Essential oils extracted from plants have been recognized for their effectiveness in food preservations. It is due to their strong antifungal, antiviral, and antibacterial properties. The utilization of Cinnamon …
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The determination of microbial quality and presence of pathogens and chemical contaminants in aquacultured rainbow trout (Oncorhynchus mykiss) fillets and whole fish from different aquaculture production systems
… (Listeria monocytogenes, Clostridium botulinum, Salmonella species, Vibrio cholerae, Yersinia enterocolitica and Y. pseudotuberculosis) and general microbial quality of whole aquacultured rainbow trout (Oncorhynchus mykiss) were in compare differing aquacultural systems and growing seasons. …
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Extracytoplasmic stress response systems in S. Typhimurium
Salmonella species can cause wide-ranging disease from mild food-poisoning enteritis to a systemic, sometimes fatal typhoid infection. These bacteria have evolved to survive in different environments within and outside the host and do so through the regulation of differential gene expression …
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Intercellular production of Hydrogen peroxide in Solanum lycopersicum: an immune response to Salmonella infection
… of deaths per year recorded. Outbreaks of Salmonella have been reported from a multitude of vegetables such as lettuce, spinach and tomatoes. Many of these outbreaks are the result of infection via non-typhoid Salmonella species such as Salmonella enterica sv. Typhimurium. The ecology of …
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An integrated approach to ciprofloxacin susceptibility analysis and high-throughput bacterial phenotyping in Salmonella
… resistance is a growing threat across the world. Salmonella are Gram-negative, motile, rod-shaped bacteria that are transmitted through the faecal-oral route and invade the small intestine to cause self-limiting gastroenteritis or invasive, systemic disease. Invasive non-typhoidal Salmonella are a …
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Designing and characterizing the plant-based chitosan-modified poly (lactic-co-glycolic acid) nanoparticles for salmonella and e. coli-induced gastroenteritis
… a total sample size of 530 children in 2020. Salmonella species and Escherichia coli were responsible for most bacterial gastroenteritis cases reported in Windhoek in 2018. Some of the key challenges in the management of gastroenteritis are: 1) Antibiotics and antidiarrheal agents used in the …
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Survival of Enterohemorrhagic Escherichia Coli O157:H7 During the Manufacture and Curing of Cheddar Cheese
… than other characterized E. coli strains and Salmonella species. Two treatments, each consisting of five replications, were designed utilizing a cocktail of three strains of E. coli O157:H7. The target for treatment one was 1,000 Colony Forming Units per mL (CFU/mL) of cheese milk; treatment …
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Characterisation of the temperate bacteriophages of salmonella enterica and salmonella bongori
Salmonella is a major cause of enteric illness in both humans and animals. The ability of Salmonella isolates to cause disease in animals and humans encompasses a spectrum of host specificity and disease severity. In terms of evolution Salmonella isolates have remained relatively similar in terms …
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Identification of potential pathogens of pneumonia in sputum samples from adult patients at the University Teaching Hospital in Lusaka
… 2/181), Parainfluenzae type 4 (1.1%, 2/181), Salmonella species (0.6%, 1/181), Mycoplasma pneumoniae (0.6%, 1/181), Influenza virus type B (0.6%, 1/181), Human coronavirus 63 (0.6%, 1/181), and Parainfluenzae type 2 (0.6%, 1/181) were also detected. Multiple agents were detected in 42% of …
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Identification of potential pathogens of pneumonia in sputum samples from adult patients at the University Teaching Hospital in Lusaka
… 2/181), Parainfluenzae type 4 (1.1%, 2/181), Salmonella species (0.6%, 1/181), Mycoplasma pneumoniae (0.6%, 1/181), Influenza virus type B (0.6%, 1/181), Human coronavirus 63 (0.6%, 1/181), and Parainfluenzae type 2 (0.6%, 1/181) were also detected. Multiple agents were detected in 42% of …
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Effect of Evaporative Cooling, Fat Content and Food Type on Pathogen Survival during Microwave Cooking
… on each food with Listeria monocytogenes, Salmonella and Escherichia coli O157:H7. Survival was determined by presence or absence of growth of each pathogen after enrichment. Listeria monocytogenes survived in all samples except for the 30% fat ground beef patties. The Salmonella species …
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Isolation of Bacterial pathogens from dead- in- shell Chicken embryos from local Hatcheries
… embryos for quite sometime. Numerous Salmonella serotypes have been frequently recorded in poultry population in Zambia, but no information is available on bacterial association with dead-in-shell mortality in hatcheries. Hence investigation into three commercial hatcheries of Zambia …
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Isolation of Bacterial pathogens from dead- in- shell Chicken embryos from local Hatcheries
… embryos for quite sometime. Numerous Salmonella serotypes have been frequently recorded in poultry population in Zambia, but no information is available on bacterial association with dead-in-shell mortality in hatcheries. Hence investigation into three commercial hatcheries of Zambia …