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 39 for “"Arboviruses"”.
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Mosquito Species Abundance, Diversity and Arbovirus Prevalence across Different Land-use in The Gambia
Mosquito-borne arboviruses represent an escalating public health threat across sub-Saharan Africa, yet surveillance remains limited in many countries, including The Gambia. This study investigates mosquito species abundance and diversity, as well as the arbovirus prevalence across human, …
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Wesselsbron virus : a biophysical, biochemical and serological study
… of this virus. Wesselsbron virus , like most arboviruses, showed marked sensitivity to the action of bother ether and sodium deoxycholate.
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Bionomics of vector-borne diseases in sites adjacent to lakes Victoria and Baringo in Kenya
… represented in mosquito bloodmeals, presence of arboviruses in blood fed mosquitoes and patients presenting with acute undiagnosed febrile illnesses in rural health facilities, and tick borne pathogens (TBPs) diversity in ticks of animals were identified. Mosquitoes were trapped by BG sentinel …
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The role of midgut serine proteases in Aedes aegypti vector competence
… facilitate enhancement of infection. Similarly, arboviruses infecting the invertebrate host (vector) through the alimentary tract may exploit serine proteases in the midgut to enhance vector infection. Recent genetic and biochemical experiments have demonstrated that dengue virus type 2 (DENV-2) …
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Luminex Microsphere Immunoassay Offers an Improved Method in Testing for Antibodies to Eastern Equine Encephalitis Virus in Sentinel Chicken Sera
… The use of sentinel chickens for surveillance of arboviruses that are known to use birds as a reservoir host, such as St. Louis Encephalitis (SLE), West Nile (WN) virus, Eastern Equine Encephalitis (EEE) and Highlands J (HJ) virus, in Florida began with the Sentinel Chicken Arboviral Surveillance …
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The Effect of Precipitation on the Spread of Mosquito-Borne Diseases: A Case Study of Florida Counties
… estimate, as well as, the data on six (6) arboviruses, over the course of thirteen (13) years, namely 2002 to 2014. The first hypothesis that was tested, was that greater precipitation increased the likelihood of a greater number of arbovirus cases. It was important to also examine the …
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Comparing mosquito communities of various patch-matrix landscape combinations in central Missouri, with implications for developing models to forecast abundances of important mosquito taxa
… will clearly affect the proliferation of arboviruses to humans present in these landscapes. Advanced mapping techniques (e.g., GPS, land cover surveys) allow for the characterization of specific locations with regard to landscape, ecological matrix, and the presence of patches of different …
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Host and viral determinants of flavivirus emergence and pathogenesis
Arthropod-borne viruses (arboviruses) are emerging and re-emerging at an increasing rate. While increased globalization, urbanization, and a changing climate all contribute to this increase, molecular mechanisms at the host and virus level are also at play. In this dissertation research, I …
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Rôle des moustiques Culicidae, de leurs communautés microbiennes et des réservoirs vertébrés, dans la transmission des arbovirus à Madagascar
… especies,but Culex antennatus. Searching of arboviruses by qRT‐PCR revealed infection of Culex antennatus and lemurs (Lepilemur edwardsi et Eulemur rufus) by the rift valley fever virus.
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In Vitro and In Vivo Effects of Espirito Santo Virus on Dengue Virus Replication
Arboviruses have been one of the leading causes of morbidity and mortality worldwide for centuries (Morens et al., 2004). Dengue virus (DENV), Zika (ZIKV), Chikungunya (CHIKV) and West Nile virus (WNV) are some of the medically important arboviruses transmitted by mosquitoes. Dengue is one of the …
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ENCOURAGING PREVENTIVE ACTION BY EMPLOYING EFFECTIVE RHETORIC IN PUBLIC COMMUNICATION OF THE ZIKA HAZARD AND ASSOCIATED RISKS
Threats from Zika and other emergent arboviruses (arthropod-borne viruses) often receive little scholarly attention across most disciplines thanks in no small part to the traditional view that most emergent disease discourse is only immediately relevant to those in medical and economic fields. The …
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Bloodmeal analysis of urban Western Australian mosquito species for improved public health outcomes
… & Barmah Forest virus are the two most prevalent arboviruses in Australia. Bloodmeal studies assist in improving the understanding of disease transmission cycles, which can consequently inform disease mitigation measures. This study involved the capture and analysis of bloodfed mosquitoes within …
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Exploiting Sugar Feeding Behaviors For Mosquito Control
… (e.g., Plasmodium sp, filarial worms, and arboviruses). In most species, females are blood feeders, and must consume a blood meal to complete a gonotrophic cycle. Extensive research has been conducted on hematophagy and host-seeking behaviors, but relatively little is known about …
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Use of Geographic Information System and Remote Sensing Technologies to Describe Mosquito Population Dynamics in the Ray Roberts Greenbelt, Denton County, Texas
… The specimens were tested for a variety of arboviruses by the Texas Department of Health. One pool of Cx. erraticus and Cx. salinarius, collected in August 2002, tested positive for West Nile virus. Variables that were important factors for determining dominant species abundance were …
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Parasite Burden and Potential Virus Exposure in the Gopher Tortoise <em>(Gopherus polyphemus)</em>
… polyphemus</em>) may serve as hosts for arboviruses, especially Eastern Equine Encephalitis Virus (EEEV), in the southeastern United States, and such a role may be related to endo- and ectoparasite loads in the tortoise. To assess this hypothesis, a survey of gopher tortoises from areas …
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Detection And Characterization of Insecticide Resistance Mechanisms in Culex Tarsalis
… a primary vector for West Nile virus among other arboviruses in Northern California, is a target for insecticide application and is under constant insecticide pressure, making it likely to adapt resistance mechanisms like kdr or ace-1 or increased detoxifying enzymes. Culex tarsalis adult females …
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Infection and Dissemination of TaV-GFP Tagged Sindbis in Aedine Mosquitoes and Cell Lines
Arthropod-borne-viruses (arboviruses) pose a global threat due to their ability to be transmitted by hematophagous insects to vertebrate hosts resulting in a range of serious infectious diseases. Sindbis virus (SINV) is the prototype arbovirus of the genus Alphavirus in the family Togaviridae. The …
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Factors influencing arbovirus transmission: vector competence and the effects of virus infection on repellent response, oxidative stress, and glutathione-S-transferase activity
… study identified competent vectors for emerging arboviruses and demonstrated the behavioral and physiological effects of virus infection in the mosquito vector.
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Insights from serological surveillance in infectious disease epidemiology
… this framework to serological data for ten arboviruses in Bangladesh. I inferred the levels of between-virus antibody cross-reactivity and reconstructed the spatiotemporal transmission dynamics of each present virus, revealing heterogeneous burdens even at small spatial scales. Overall, …
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Cross-reactivity among alphaviruses provides insight into viral emergence and novel defense strategies
… of medically relevant arthropod-borne viruses (arboviruses) belonging to the Togaviridae family that are maintained by mosquito vectors. These zoonotic viruses are clustered into two groups: New World and Old World, depending on their geographical origin/distribution and clinical manifestations. …
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