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dc.contributor.advisorScott Weaveren_US
dc.creatorEleanor Rose Deardorffen_US
dc.date.accessioned2011-12-20T16:04:19Z
dc.date.available2010-09-28en_US
dc.date.available2011-12-20T16:04:19Z
dc.date.created2009-03-13en_US
dc.date.issued2009-03-05en_US
dc.identifier.otheretd-03132009-101619en_US
dc.identifier.urihttp://hdl.handle.net/2152.3/44
dc.description.abstractThe emergence of Venezuelan equine encephalitis virus in Chiapas Mexico was examined from a field approach and from a laboratory approach. This virus was not previously associated with equine disease in Mexico. The evolution of the equine virulent phenotype was thought to have resulted in a mosquito vector switch from Culex (Melanoconion) taeniopus to Aedes (Ochlerotatus) taeniorhynchus as a result of land-use changes. Wild rodents and mosquitoes were captured over the course of one year and little evidence of virus circulation was found. Wild rodents from five species were then imported into the lab for experimental evaluation as virus amplifying hosts. It was found that a VEEV strain from the study area may use a variety of rodents as amplifying hosts in the laboratory. Lastly a breeding colony of Culex (Mel.) taeniopus mosquitoes was established and experimentally evaluated for the ability of these mosquitoes to transmit equine virulent VEEV. It was found that equine virulent virus infects and is transmitted by this mosquito with high efficiency and is likely maintained in transmission foci by Culex (Mel) taeniopus during inter-epizootic periods.en_US
dc.format.mediumelectronicen_US
dc.language.isoengen_US
dc.rightsCopyright © is held by the author. Presentation of this material on the TDL web site by The University of Texas Medical Branch at Galveston was made possible under a limited license grant from the author who has retained all copyrights in the works.en_US
dc.subjectVirologyen_US
dc.subjectVEEVen_US
dc.subjectrodenten_US
dc.subjectmosquitoen_US
dc.subjectMexicoen_US
dc.subjectEcologyen_US
dc.subjectarbovirusen_US
dc.titleField and laboratory studies of venezuelan equine encephalitis virus ecology in Chiapas, Mexico.en_US
dc.type.materialtexten_US
dc.type.genredissertationen_US
thesis.degree.namePhDen_US
thesis.degree.levelDoctoralen_US
thesis.degree.grantorThe University of Texas Medical Branchen_US
thesis.degree.departmentExperimental Pathologyen_US


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