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Browsing by UP Author "Weyer, Camilla Theresa"
Now showing items 1-13 of 13
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Grewar, John Duncan; Weyer, Camilla Theresa; Guthrie, Alan John; Koen, Pieter; Davey, Sewellyn; Quan, Melvyn; Visser, Dawid; Rossouw, Esthea; Buhrmann, Gary (OpenJournals Publishing, 2013-11-15)African horse sickness (AHS) is a controlled animal disease in South Africa, and as a result of the high mortality rates experienced, outbreaks in the AHS controlled area in the Western Cape Province have a significant ...
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Zientara, S.; Weyer, Camilla Theresa; Lecollinet, S. (International Office of Epizootics, 2015)African horse sickness (AHS) is a devastating disease of equids caused by an arthropod-borne virus belonging to the Reoviridae family, genus Orbivirus. It is considered a major health threat for horses in endemic areas ...
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Weyer, Camilla Theresa; Grewar, John Duncan; Burger, Phillipa; Rossouw, Esthea; Lourens, Carina W.; Joone, Christopher; le Granje, Misha; Coetzee, Peter; Venter, Estelle Hildegard; Martin, Darren P.; MacLachlan, N.J. (James); Guthrie, Alan John (Centers for Disease Control and Prevention, 2016-12)African horse sickness (AHS) is a hemorrhagic viral fever of horses. It is the only equine disease for which the World Organization for Animal Health has introduced specific guidelines for member countries seeking official ...
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Weyer, Camilla Theresa; Quan, Melvyn; Joone, Christopher; Lourens, Carina W.; MacLachlan, N.J. (James); Guthrie, Alan John (Wiley-Blackwell, 2013-01)To determine whether subclinical cases, together with clinical cases, of African horse sickness (AHS) occur in immunised horses in field conditions, whole blood samples were collected and rectal temperatures recorded ...
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Weyer, Camilla Theresa; Joone, Christopher; Lourens, Carina W.; Monyai, Mpho S.; Koekemoer, J.J.O. (Otto); Grewar, John Duncan; Van Schalkwyk, Antoinette; Majiwa, P.O.A. (Phelix); MacLachlan, N.J. (James); Guthrie, Alan John (Elsevier, 2015-10)Blood samples collected as part of routine diagnostic investigations from South African horses with clinical signs suggestive of African horse sickness (AHS) were subjected to analysis with an AHS virus (AHSV) group specific ...
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Guthrie, Alan John; MacLachlan, N.J. (James); Joone, Christopher; Lourens, Carina W.; Weyer, Camilla Theresa; Quan, Melvyn; Monyai, Mpho S.; Gardner, Ian A. (Elsevier, 2013)Blood samples collected from 503 suspect cases of African horse sickness (AHS) and another 503 from uninfected, unvaccinated South African horses, as well as 98 samples from horses from an AHS free country, were tested ...
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Mayo, Christie E.; Weyer, Camilla Theresa; Carpenter, M.J.; Reed, K.J.; Rodgers, C.P.; Lovett, K.M.; Guthrie, Alan John; Mullens, B.A.; Barker, C.M.; Reisen, W.K.; MacLachlan, N.J. (James) (International Office of Epizootics, 2021-06)The availability of rapid, highly sensitive and specific molecular and serologic diagnostic assays, such as competitive enzyme-linked immunosorbent assay (cELISA), has expedited the diagnosis of emerging transboundary ...
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Grewar, John Duncan; Kotze, Johann L.; Parker, Beverly J.; Van Helden, Lesley S.; Weyer, Camilla Theresa (Public Library of Science, 2021-05)South Africa is endemic for African horse sickness (AHS), an important health and tradesensitive disease of equids. The country is zoned with movement control measures facilitating an AHS-free controlled area in the ...
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Grewar, John Duncan; Weyer, Camilla Theresa; Venter, Gert Johannes; Van Helden, Lesley Susan; Burger, Phillippa; Guthrie, Alan John; Coetzee, Peter; Labuschagne, Karien; Buhrmann, Gary; Parker, Beverley Joan; Thompson, P.N. (Peter N.) (Wiley, 2019-03)An outbreak of African horse sickness (AHS) caused by AHS virus type 1 occurred within the South African AHS surveillance zone during April and May 2016. The index case was detected by a private veterinarian through passive ...
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Van Sittert, Sybrand J.; Drew, Tessa M.; Kotze, Johann L.; Strydom, Tom; Weyer, Camilla Theresa; Guthrie, Alan John (OpenJournals Publishing, 2013-09-13)This is the first case of African horse sickness (AHS) in a dog where there was no apparent ingestion of horse meat. Significantly, the dog was part of a colony that resides in a Good Clinical Practice and Good Laboratory ...
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Grewar, John Duncan; Porphyre, Thibaud; Sergeant, Evan S.; Weyer, Camilla Theresa; Thompson, P.N. (Peter N.) (Wiley, 2020-04)An African horse sickness (AHS) outbreak occurred in March and April 2016 in the controlled area of South Africa. This extended an existing trade suspension of live equids from South Africa to the European Union. In the ...
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Sergeant, Evan S.; Grewar, John Duncan; Weyer, Camilla Theresa; Guthrie, Alan John (Public Library of Science, 2016-03-17)African horse sickness (AHS) is a severe, often fatal, arbovirus infection of horses, transmitted by Culicoides spp. midges. AHS occurs in most of sub-Saharan Africa and is a significant impediment to export of live ...
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Venter, Marietjie; Pretorius, Marthi Andréa; Fuller, James A.; Botha, Elizabeth; Rakgotho, Mpho; Stivaktas, Voula; Weyer, Camilla Theresa; Romito, Marco; Williams, June Heather (Centers for Disease Control and Prevention, 2017-12)During 2008–2015 in South Africa, we conducted West Nile virus surveillance in 1,407 animals with neurologic disease and identified mostly lineage 2 cases in horses (7.4%, 79/1,069), livestock (1.5%, 2/132), and wildlife ...
Now showing items 1-13 of 13