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 11 of 11 for “"Rickettsiosis"”.
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Mechanisms of increased microvascular permeability during acute Rickettsiosis
Rickettsial diseases represent some of the most severe bacterial infections in man including Rocky Mountain spotted fever and epidemic typhus. Rickettsiae primarily target the microvascular endothelium leading to increased microvascular permeability, the mechanisms of which are completely unknown. …
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Rendimiento de diferentes métodos de PCR en el diagnóstico molecular de las rickettsiosis humanas transmitidas por garrapatas
Las rickettsiosis constituyen un grupo heterogéneo de zoonosis, transmitidas por artrópodos vectores (garrapatas, pulgas, piojos y otros ácaros) y producidas por distintas especies del género Rickettsia. El diagnóstico de este tipo de infecciones es fundamentalmente clínico, si bien hacen falta …
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Caracterización de especies de rickettsia en garrapatas (ixodidae) del municipio de Villeta, Cundinamarca y su relación con la epidemiología de la rickettsiosis en el mismo municipio
… es considerado como una zona endémica para rickettsiosis del grupo de las fiebres manchadas (GFM), dados los casos de mortalidad en humanos por Rickettsia rickettsii en el periodo 2003-2004, y las altas tasas de seropositividad frente al GFM tanto en habitantes de zona rural, como en …
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Estudio de la rickettsiosis transmitida por garrapatas en zonas rurales del departamento del Cauca y la importancia de Amblyomma patinoi en la epidemiología de la enfermedad
Las rickettsiosis son entidades clínicas de tipo zoonótico. Actualmente hacen parte de las enfermedades desatendidas en salud humana y animal. Los agentes causales son bacterias del género Rickettsia transmitidas por vectores (piojos, pulgas, ácaros picadores y garrapatas) siendo estas últimas el …
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SURVEY OF Rickettsia spp. IN TICKS IN NACOGDOCHES COUNTY, TEXAS
… causative agent of <em>Rickettsia parkeri </em>rickettsiosis, which is a disease characterized by nonspecific symptomology. Significant effort by numerous research groups focuses on determining the geographic distribution of potential vectors of this pathogen. The purpose of this study was to …
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The Etiology of Potomac Horse Fever (Ehrlichia Risticii)
… sennetsu, causative agent of human sennetsu rickettsiosis, in the serum of horses recovering from PHF implicated a rickettsia as the potential causative agent of PHF. A rickettsial agent was subsequently isolated in cultured blood monocytes derived from a pony experimentally inoculated with …
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An Insight Into the Microbial Diversity and Expression of Cysteine Protease Inhibitors (Cystatin) in <i>Rickettsia parkeri</i> Infected <i>Amblyomma maculatum</i>
… parkeri</em>, an etiological agent of a human rickettsiosis. In this study, we investigated the spotted fever group of rickettsial diversity in <em>A. maculatum</em> based on rickettsial <em>ompA</em> gene PCR. Our results showed <em>A. maculatum </em>harbors <em>R. parkeri, R. amblyommii, …
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Characterization of rickettsial infection dynamics within Dermacentor variabilis and Amblyomma maculatum
… with an unprecedented rise in human cases of SFG rickettsiosis, necessitates a deeper understanding of tick/Rickettsia interactions. The hypothesis for this work is that if primary tick/Rickettsia pairings do not exist then rickettsial determinants account for primary vector/pathogen …
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Tick abundance and microorganism diversity in the 11 counties comprising the Choctaw Nation of Oklahoma
… of the highest reported rates of Spotted Fever Rickettsiosis and Ehrlichiosis within humans in the United States. However, the lack of localized surveys of tick vectors in the region have left gaps in our understanding of these diseases in the region. This study attempts to define the current …
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Arthropod and vertebrate determinants for horizontal transmission of Rickettsia felis
… as the etiologic agent of flea-borne rickettsiosis, R. felis can cause disease in humans, with patients presenting with clinical symptoms typical of rickettsial diseases including: fever, headache, and myalgia. Transmission of R. felis within flea colonies is predominantly via vertical …
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Bionomics of vector-borne diseases in sites adjacent to lakes Victoria and Baringo in Kenya
… and Rhipicephalus ticks, as well as agents of rickettsiosis, including Rickettsia africae, Rickettsia aeschlimannii, Rickettsia rhipicephali, Rickettsia montanensis and a Rickettsia sp. that was not conclusively characterized. Babesia caballi, Theileria sp. and Hepatozoon fitzsimonsi were also …