ENTO 210 Study Guide - Quiz Guide: Itch, Alphavirus, Epizootic
9 Nov 2016
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Lc 12: the global emergence/resurgence of arboviral diseases as public health. Introduction: in the last 30 years of the 20th century there has been a increase in newly recognized viral diseases. Ex: dengue, west nile, japanese encephalitis, yellow fever, rift valley fever, venezuelan equine encephalitis, and ross river. Natural history: arbovirus- used to describe a virus that require a blood-sucking arthropod to complete their life cycle. Require a minimum of 2 hosts, a vertebrae and arthropod: 534 arboviruses. 33 are probable or definitely not arboviruses. 134 cause illness in humans: arboviruses belong to 8 different viral families and 14 genera, most of public health importance belong to 3 families. Bunyaviridae: humans are usually dead-end or incidental hosts who don"t contribute to the transmission cycle, most important reservoirs. Birds or rodents: most important vector. Mosquitoes and ticks: majority of arboviruses found in tropical areas.
