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 14 of 14 for “"Environmental reservoirs"”.
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Development of comparative genomic fingerprinting for molecular epidemiological studies of Campylobacter jejuni
… epidemiological study of C. jejuni isolated from environmental, animal and human clinical samples from southern Alberta. Reservoirs of infection, subtypes associated with higher incidence of human infection, and the persistence of prevalent subtypes in animal/environmental reservoirs were …
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Interactions between calanoid copepod hosts and their associated microbiota
Copepods are highly abundant environmental reservoirs of many bacterial pathogens. This thesis investigates whether copepod physiology influences the abundance and community structure of its microbiome. To this end, we first examined the ability of the oceanic copepod Calanus finmarchicus to …
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Microbiology and cell biology of the interaction between Listeria monocytogenes and Acanthamoeba spp.
… and can grow and survive in a wide range of environmental conditions. It contaminates foods via raw materials or food processing environments. However, the current knowledge of its ecology and in particular, the mode of environmental survival and transmission of L. monocytogenes remains …
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Microplastic pollution in the deep sea ecosystem: a study from the Rockall Trough, North East Atlantic Ocean
Over the last decade there has been growing environmental concern regarding microplastics. Despite the continued and increasing inputs of plastics into the environment, studies reveal lower than expected concentrations in surface waters. More recently reports have emerged documenting high …
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Interactions between calanoid copepod hosts and their associated microbiota
… such as copepods, are highly abundant environmental reservoirs of many bacterial pathogens. Although copepods are known to support diverse and productive bacterial communities, little is understood about whether copepods are affected by bacterial attachment and whether they can regulate …
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Fate of Antibiotic Resistance Genes During Anaerobic Digestion of Wastewater Solids
… realization of the importance of addressing environmental reservoirs of ARGs all lead toward the need for improved understanding of ARG fate and pathogen inactivation kinetics and mechanisms in sludge stabilization technologies. This research has investigated the fate of two pathogens, …
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Investigations into the role of exogenous estrogenic endocrine disrupting chemicals on immune dysregulation in autoimmune disease
… highlight the growing concern surrounding environmental exposure to EEDCs and immune system modulation. A commonly prescribed EEDC, 17α-ethinyl estradiol, is a synthetic analog of 17β-estradiol (E2), and is also found in many environmental reservoirs of human and animal exposure. Little is …
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Characterising the microbial communities associated with the water distribution system of a broiler farm and their role in Campylobacter infection
… are zoonotic pathogens with extensive animal and environmental reservoirs in spite of their fastidious nature. Campylobacter jejuni is the main bacterial cause of human gastroenteritis worldwide. Epidemiological studies have identified chicken meat as the main vehicle for human infection in …
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EVALUATION AND MODELING OF RISK FACTORS ASSOCIATED WITH MICROBIAL CONTAMINATION IN PRODUCE PRE-HARVEST ENVIRONMENT
… microbial contamination due to its proximity to environmental reservoirs such animal enclosures and composting facilities. Such contamination can be affected by meteorological factors such as temperature, precipitation, and wind speed. By integrating microbial sampling and meteorological data, …
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Molecular Characterisation Of Clostridium Perfringens Isolates From Patients At Groote Schuur Hospital
… Infection originates from spores found in environmental reservoirs such as soil, faecal-contaminated water, and food. Infection can also be caused, when the organisms disseminate from the gastrointestinal tract (GIT) of human carriers to the rest of the body. South Africa (RSA) lacks …
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Characterization of E. coli strains from rural communities in the Vhembe District (Limpopo South Africa)
… or animal faeces to a new susceptible host using environmental reservoirs such as soil, water, hands as the transmission pathway. Objective: The primary objective of the study was to characterize E. coli strains from rural communities of Vhembe district, Limpopo, South Africa. Methodology: …
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Microbial Antibiotic Resistance and Integron Gene Distribution Within An Urbanized Coastal Estuarine Ecosystem
… were observed for blaM-1 and IntI genes in environmental samples. Results generated from this research may be used to provide a better knowledge of how an urban landscape might be affecting the evolution of surrounding microbial communities. Furthermore, this study examines the potential of …
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Natural arsenic and uranium accumulation and remobilization in different geological environments
… U sources, and structural derivation of their environmental reservoirs as well as remobilization mechanisms potentially resulting in trace element release to groundwater were assessed. Drinking water supply in Franconia/Northern Bavaria is dependent on groundwater extraction from terrestrial …
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Pinnipeds as sentinels of antimicrobial resistance: mapping antimicrobial resistance genes in the waters of the United Kingdom
… health. There is a lack of information about environmental reservoirs of AMR, many of which feed into the marine habitat. Pinnipeds are often used as sentinels of ocean health because they are long lived, apex predators that forage over wide areas and thus can represent the food web over large …