31 - Flavivirus Xiao-Kui GUO Dept. of Microbiology and...

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Unformatted text preview: Flavivirus Xiao-Kui GUO Dept. of Microbiology and Parasitology Viral Zoonosis Viral Zoonosis vertebrate animals arboviral Arthropod-borne viruses arboviruses arthropod vectors The WHO definition is as follows Viruses maintained in nature principally, or to an important extent, through biological transmission between susceptible vertebrate hosts by haematophagus arthropods or through transovarian and possibly venereal transmission in arthropods 3 Togaviruses EEE, WEE, and VEE Bunyaviruses Haemorrhagic Fever Sandfly Fever, Rift Valley Fever, Crimean-Congo Flaviviruses Yellow Fever, dengue, Japanese Encephalitis 6 Prevalence in China Scientist collecting specimens from trapped rodents Common characteristics 40~70 nm in diameter, +ssRNA spherical enveloped Hemophilic arthropods as vector, and viruses replicate in arthropod 5 type clinical manifestations and diseases related to season and district. Major Clinical Categories of Arboviral Disease No clinical illness. Febrile systemic illness. Encephalitis Haemorrhagic Fever. Hepatitis arthritis Genome Flaviviruses Dengue viruses Epidemic type B encephalitis virus Tick-borne encephalitis virus 20~60nm 100nm +ssRNA C RNA M E E...
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This note was uploaded on 01/13/2012 for the course MMBIO 361 taught by Professor Bernard during the Fall '11 term at BYU.

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31 - Flavivirus Xiao-Kui GUO Dept. of Microbiology and...

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