Journal
REVISTA DA SOCIEDADE BRASILEIRA DE MEDICINA TROPICAL
Volume 40, Issue 2, Pages 224-229Publisher
SOC BRASILEIRA MEDICINA TROPICAL
DOI: 10.1590/S0037-86822007000200016
Keywords
emergent arboviruses in Brazil; alphavirus; flavivirus; orthobunyavirus
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Brazil is a large tropical country (8,514,215km(2)) with 185,360,000 inbabitants. More than one third of its territory is covered by tropical forests or other natural ecosystems. These provide ideal conditions for the existence of many arboviruses, which are maintained in a large variety of zoonotic cycles. The risk that new arboviruses might emerge in Brazil is related to the existence of large, densely populated cities that are infested by mosquitoes such as Culex and the highly anthropophilic Aedes aegypti. Infected humans or animals may come into these cities from ecological-epidemiological settings where arbovirus zoonoses occur. This study analyzes the risk of emergence of the alphaviruses Mayaro, Venezuelan equine encephalitis, Eastern equine encephalitis and Chikungunya; the flaviviruses yellow fever, Rocio, Saint Louis encephalitis and West Nile, and the ortbobunyavirus Oropouche.
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