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Browsing Research Articles (Production Animal Studies) by UP Author "Grewar, John Duncan"
Now showing items 1-9 of 9
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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; Thompson, P.N. (Peter N.); Lourens, Carina W.; Guthrie, Alan John (AOSIS OpenJournals, 2015-09-30)Thoroughbred foal body temperature data were collected from shortly after birth until shortly after weaning during the 2007/2008 season on a stud farm in the Western Cape Province of South Africa. Equine encephalosis ...
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Grewar, John Duncan; Sergeant, Evan S.; Weyer, Camilla Theresa; Van Helden, Lesley Susan; Parker, Beverley Joan; Anthony, Tasneem; Thompson, P.N. (Peter N.) (Wiley, 2019-11)An African horse sickness (AHS) outbreak occurred in South Africa's AHS controlled area in autumn 2016. A freedom from disease survey was performed to establish the likelihood of ongoing circulation of the associated virus ...
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Abolnik, Celia; Ostmann, Erich; Woods, Matthew; Wandrag, D.B.R. (Daniel); Grewar, John Duncan; Roberts, Laura Christl; Olivier, Adriaan J. (Elsevier, 2021-12)Please read abstract in the article.
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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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Kotze, Johann L.; Grewar, John Duncan; Anderson, Aaron (Public Library of Science, 2021-03)Dog rabies has been recognized from ancient times and remains widespread across the developing world with an estimated 59,000 people dying annually from the disease. In 2011 a tri-partite alliance consisting of the OIE, ...
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Abolnik, Celia; Phiri, Thandeka Precious; Peyrot, Belinda; De Beer, Renee; Snyman, Albert; Roberts, David; Ludynia, Katrin; Jordaan, Frances; Maartens, Michele; Ismail, Zehaad; Strydom, Christine; Van der Zel, Gerbrand; Anthony, Jade; Daniell, Nadine; De Boni, Liesl; Grewar, John Duncan; Olivier, Adriaan; Roberts, Laura C. (MDPI, 2023-06-16)In southern Africa, clade 2.3.4.4B H5N1 high pathogenicity avian influenza (HPAI) was first detected in South African (SA) poultry in April 2021, followed by outbreaks in poultry or wild birds in Lesotho and Botswana. ...
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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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Cumming, Graeme S.; Abolnik, Celia; Caron, Alexandre; Gaidet, Nicolas; Grewar, John Duncan; Hellard, Eleonore; Henry, Dominic A. W.; Reynolds, Chevonne (Springer, 2015-07)Context Landscape structure influences host–parasite–pathogen dynamics at multiple scales in space and time. Landscape epidemiology, which connects disease ecol-ogy and landscape ecology, is still an emerging field. ...
Now showing items 1-9 of 9