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 “"human infection"”.
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Trends in Canine Lyme Disease on the Eastern Shore of Virginia, 2000-2005
… has shown that dogs can be used as sentinels for human infection of Lyme disease. The purpose of this 5-year, retrospective study was to determine if there was any evidence that the incidence of canine Lyme disease has increased between 2000 and 2005 in Accomack and Northampton counties. An …
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Human Behavior in Epidemic Modelling
… powerful tool for investigating the dynamics of human infection diseases, providing useful predictions about the spread of a disease and the effectiveness of possible control measures. One of the central aspects to understand the dynamics of human infection is the heterogeneity in behavioral …
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Aspectos ambientais e sociais envolvidos na transmissão da L. chagasi no município de Parnamirim/RN
… and social aspectsof Leishmania chagasi infection and its epidemiologic transmission chain in an urban, periurban and rural area of Parnamirim-RN. A study with three sections was conducted: Section 1: Sectional study of the human and canine infection by L. chagasi and its environmental …
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Feed Supplementation with Natural Extracts of Cranberry and its Efficacy on Campylobacter Colonization in Poultry
… has shown that poultry is the main source for human infection. Poultry are asymptomatic carriers of Campylobacter within their gastrointestinal tract, with colonization levels reaching 106-108 cfu/g cecal content. Surveys of domestic poultry flocks have estimated that approximately 90% of …
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The Effects of Avian Influenza Outbreak on U.S. Poultry Prices
Even in the absence of proven human-to-human transmission of the disease, the uncertainty surrounding bird flu could devastate regional economic growth and financial markets. Confirmed cases of human infection from several subtypes of avian influenza infection have been reported since 1997. …
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Exploring the interactions between schistosome eggs and the human host
… throughout Africa, Asia and South America. Infection with Schistosoma flukes causes the disease schistosomiasis, which results in approximately 200,000 deaths per year in Sub-Saharan Africa alone. Three schistosome species are mainly responsible for human infection; Schistosoma mansoni, S. …
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The epidemiology of Coxiella burnetii in goats in Indiana
… These same species are the main reservoirs for human infection with C. burnetii. The overall goal of this project was to develop a baseline understanding of the epidemiology of C. burnetii in goats in Indiana. Specific areas addressed were: Individual and herd level prevalence of infection with …
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Prevalence of tuberculosis in childhood and the conditions of our milk supply
… brought about slowly but with care to prevent human infection and with the minimum of loss to the country by amending the existing Orders, by encouraging milk certification and by introducing the methods which I have already enumerated which are being used with success in other countries.
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Algumas das formas de poluição do açude de Coremas-Pb provocadas pelos moradores locais.
… of life literally composing most of all human material. In this work were photographed indicators of microbial pollutants occurring and spreading the edges of the reservoir through conduit located on the front of homes or even the formation of small garbage dumps that cause the release of …
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A porcine model for polymicrobial respiratory infections with swine influenza virus and Staphylococcus aureus
… is further complicated by secondary bacterial infection. The emergence of highly pathogenic strains of IAV in conjunction with the increase of antibiotic-resistant bacteria threatens human health. A large-animal model effective for study of polymicrobial infection comparable to humans must …
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DNA comparisons of the two orthopoxviruses monkeypox and variola
… likely candidate is Monkeypox, which can produce human infection clinically resembling smallpox. The work in this thesis is the beginning of a detailed comparison of the DNA of Variola and Monkeypox. A 15.3kb section of the Variola genome was compared with a corresponding 14.4kb region of …
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Immunological and Molecular Analyses of the Borrelia burgdorferi OspF Protein Family F
… ability of B. burgdorferi to maintain chronic infection indicates that they are capable of immune evasion. A distinguishing characteristic of B. burgdorferi is the large number of sequences encoding predicted or known lipoproteins, including outer surface protein F (OspF). This study analyzes …
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Development of a Mouse Model of NY99 West Nile Virus-Induced Neurological Changes
… inoculation of wild-type virus to mimic human infection more closely. The aims were to determine if this form of infection caused neurological deficits, if there were inflammatory changes after infection, and if the viral RNA persisted in the brain. Mice infected with WNV that were …
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Cost-Effectiveness Analysis Using Agent-Based Modelling: A General Framework with Case Studies
… been a surge of interest in the use of ABM in human health and disease dynamics. While this is rapidly growing, its application to other relevant areas such as health economics is still in infancy, and frameworks that could systematically apply ABM are still lacking. In this thesis, we develop …
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Pichinde virus infection of outbred Hartley guinea pigs and mice as small animal models of human Lassa fever
… can cause severe and deadly hemorrhagic fever infections in Africa and South America, including Lassa virus that causes Lassa fever in several countries in west Africa. There are currently no vaccines and very limited therapeutics available for Lassa fever. There are also several …
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Investigating the potential of Sodium Butyrate to Control Salmonella Enteritidis in Poultry
… borne pathogen that causes enteric illnesses in humans. Despite using various pre-harvest and post-harvest intervention strategies to reduce Salmonellosis, SE infection is still an extensive problem in the poultry industry with increased incidences since SE has developed multiple strategies to …
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Eco-epidemiology of West Nile virus in the midwestern United States
… and caused a local outbreak affecting birds and humans. In four years, the virus reached California and was present in nearly every state. Two decades later, WNV is now the most important mosquito-borne disease in North America and continues to cause human infection and death. Countless …
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Characterising the response to gliotoxin exposure in Aspergillus fumigatus ΔgliT and ΔgliZ
… and importance as a virulence factor in human infection. Availability of the A. fumigatus genome has allowed for the characterisation of the gliotoxin biosynthetic cluster gli, with previous work illustrating the importance of the thioredoxin reductase gliT in self protection against …
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Relative contributions of the stringent response mediators (p)ppGpp and DksA to Haemophilus ducreyi virulence in humans
… ulcers in children in tropical regions. During human infection, H. ducreyi is subject to a variety of stresses. The stringent response is a bacterial stress response system induced by nutrient limiting conditions and mediated by guanosine tetra- and pentaphosphate [(p)ppGpp] and the …
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