Possible RVF activity in the Horn of Africa

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dc.creatorAnimal Production and Health Division
dc.date2023-04-27T11:54:08Z
dc.date2023-04-27T11:54:08Z
dc.date2006
dc.date2017-12-05T18:55:02.0000000Z
dc.date.accessioned2026-06-27T23:37:10Z
dc.descriptionRift Valley fever (RVF) is an arthropod-borne viral disease of ruminants, camels and humans. It is a significant zoonosis which may present itself from an uncomplicated influenza-like illness to a haemorrhagic disease with severe liver involvement and ocular or neurological lesions. In animals, RVF may be unapparent in non-pregnant adults, but outbreaks are characterised by the onset of abortions and high neonatal mortality. Transmission to humans may occur through close contact with infected ma terial (slaughtering or manipulation of runts), but the virus (Phlebovirus) is transmitted in animals by various arthropods including 6 mosquito genus (Aedes, Culex, Mansonia, Anopheles, Coquillettidia and Eretmapodites) with more than 30 species of mosquitoes recorded as infected and some of them been proved to have a role as vectors. Most of these species get the infection by biting infected vertebrates, yet some of these (specifically Aedes species) transmit the virus to their eggs. These inf ected pools of eggs can survive through desiccation during months or years and restart the transmission after flooding, and then other species (Culex spp.) may be involved as secondary vectors. This vertical infection explains how the disease can persist between outbreaks.
dc.format7p.
dc.formatapplication/pdf
dc.identifierhttps://openknowledge.fao.org/handle/20.500.14283/AJ218E
dc.identifierhttp://www.fao.org/3/a-aj218e.pdf
dc.identifier.urihttp://hdl.handle.net/123456789/286623
dc.languageEnglish
dc.relationEMPRES Watch
dc.rightsFAO
dc.titlePossible RVF activity in the Horn of Africa
dc.titlePossible RVF activity in the Horn of Africa
dc.typeBook (series)

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