HOST DEFENSE8 - with birds and bird-feeding mosquitoes for...

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HOST DEFENSES: Togaviruses induce interferon and are susceptible to its effects. Infections usually resolve once antiviral antibody is produced. The role of the cell-mediated response is less well known but is probably important. EPIDEMIOLOGY: Alphaviruses are generally associated with birds and horses and their mosquitoes. Flaviviruses are generally associated
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Unformatted text preview: with birds and bird-feeding mosquitoes for SLE and WNE. Yellow fever and Dengue fever are human in origin. DIAGNOSIS: Clinical: The epidemiology of the infection along with clinical suspicion and laboratory results are diagnostic. Laboratory: One can isolate the virus from the blood during the viremic phase....
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