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Browsing by UP Author "Coetzer, Jacobus A.W."
Now showing items 1-20 of 48
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Sibeko-Matjila, Kgomotso Penelope; Collins, Nicola E.; Oosthuizen, Marinda C.; Troskie, Milana; Potgieter, Fred T.; Coetzer, Jacobus A.W.; Geysen, Dirk (Elsevier, 2011-09)Restriction fragment length polymorphism analysis of PCR products (PCR-RFLP) and sequencing of the variable region of the p104 and PIM genes was performed on samples obtained from South African T. parva parasites originating ...
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Steyn, Jumari; Botha, Elizabeth; Lourens, Carina W.; Coetzer, Jacobus A.W.; Venter, Marietjie (Centers for Disease Control and Prevention, 2019-12)Bagaza virus (BAGV) has not been reported in birds in South Africa since 1978. We used phylogenetic analysis and electron microscopy to identify BAGV as the likely etiology in neurologic disease and death in Himalayan monal ...
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Toye, Philip G.; Batten, C.A.; Kiara, Henry; Henstock, M.R.; Edwards, L.; Thumbi, Samuel Mwangi; Poole, Elizabeth Jane; Handel, Ian Graham; Bronsvoort, Barend Mark de Clare; Hanotte, Olivier; Coetzer, Jacobus A.W.; Woolhouse, Mark E.J.; Oura, C.A.L. (Elsevier, 2013-03)The presence of bluetongue virus (BTV) and Epizootic Haemorrhagic Disease virus (EHDV) in indigenous calves in western Kenya was investigated. Serum was analysed for BTV and EHDV antibodies. The population seroprevalences ...
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Howell, P.G.; Bosman, Anna-Mari; Coetzer, Jacobus A.W.; Guthrie, Alan John; Groenewald, Daleen; Visage, Carina W.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)Selected isolates of equine encephalosis virus were shown to have comparable viral protein profiles and to represent seven distinct serotypes, based on cross-neutralization tests. Serotype-specific virus-neutralizing ...
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Coetzer, Jacobus A.W.; Theodoridis, A.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)The clinical symptoms and pathology in 33 adult sheep and 31 adult goats experimentally infected with Wesselsbron disease virus are described. There was moderate to severe hyperthermia in most animals, but no other ...
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Fafetine, Jose Manuel; Tijhaar, Edwin; Paweska, Janusz Tadeusz; Neves, L.C.B.G.D. (Luís); Hendriks, Judith; Swanepoel, Robert; Coetzer, Jacobus A.W.; Egberink, Herman F.; Rutten, Victor P.M.G. (Elsevier, 2007-03-31)Serodiagnosis of Rift Valley fever (RVF) currently relies on the use of live or inactivated whole virus as antigens. The recombinant nucleocapsid (N) protein of RVF virus was tested for diagnostic applicability in an ...
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Lubinga, Jimmy Clement; Clift, Sarah Jane; Tuppurainen, Eeva S.M.; Stoltsz, Wilhelm Heinrich; Babiuk, Shawn; Coetzer, Jacobus A.W.; Venter, Estelle Hildegard (Elsevier, 2014-03)Lumpy skin disease (LSD) is caused by lumpy skin disease virus (LSDV), a member of the genus Capripoxvirus. Transmission of the virus has been associated with haematophagous insects such as Stomoxys calcitrans as well ...
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Coetzer, Jacobus A.W.; Van der Lugt, Jaco J.; Cilliers, C.; Smit, Marie M.E.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1995)Wesselsbron disease (WSL) was diagnosed in a 2-d-old lamb on a farm in the north-eastern Free State Province where a few abortions and neonatal deaths occurred in sheep in April 1994. The liver of the lamb was slightly ...
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Coetzer, Jacobus A.W.; Van der Lugt, Jaco J.; Smit, M.M.E.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1996)The distribution of Rift Valley fever (RVF) viral antigen was studied by immunohistochemistry in the liver, spleen, prescapular lymph node, lungs and kidneys of eight experimentally infected new-born lambs and in four ...
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Njiiri, Evalyne Nyawira; Bronsvoort, Barend Mark de Clare; Collins, Nicola E.; Steyn, Helena C.; Troskie, Milana; Vorster, Ilse; Mwangi, Thumbi S.; Sibeko-Matjila, Kgomotso Penelope; Jennings, Amy; Van Wyk, Ilana; Mbole-Kariuki, Mary Ndila; Kiara, Henry; Poole, Jane; Hanotte, Olivier; Coetzer, Jacobus A.W.; Oosthuizen, Marinda C.; Woolhouse, Mark E.J.; Toye, Philip G. (Elsevier, 2015-05)The development of sensitive surveillance technologies using PCR-based detection ofmicrobial DNA, such as the reverse line blot assay, can facilitate the gathering of epidemi-ological information on tick-borne diseases, ...
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Lubinga, Jimmy Clement; Tuppurainen, Eeva S.M.; Coetzer, Jacobus A.W.; Stoltsz, Wilhelm Heinrich; Venter, Estelle Hildegard (Springer, 2014-01)Lumpy skin disease is a debilitating cattle disease caused by the lumpy skin disease virus (LSDV), belonging to the genus Capripoxvirus. Epidemics of the disease usually occur in summer, when insect activity is high. ...
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Tuppurainen, Eeva S.M.; Lubinga, Jimmy Clement; Stoltsz, Wilhelm Heinrich; Troskie, Milana; Carpenter, Simon T.; Coetzer, Jacobus A.W.; Venter, Estelle Hildegard; Oura, Chris A.L. (Elsevier, 2013)Lumpy skin disease (LSD) is an economically important acute or sub-acute disease of cattle that occurs across Africa and in the Middle East. The aim of this study was to assess whether Rhipicephalus decoloratus ticks ...
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Fafetine, Jose Manuel; Domingos, Ana; Antunes, Sandra; Esteves, Aida; Paweska, Janusz Tadeusz; Coetzer, Jacobus A.W.; Rutten, Victor P.M.G.; Neves, L.C.B.G.D. (Luís) (Wiley-Blackwell, 2013-11)Due to the unpredictable and explosive nature of Rift Valley fever (RVF) outbreaks, rapid and accurate diagnostic assays for low-resource settings are urgently needed. To improve existing diagnostic assays, monoclonal ...
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Murray, Gemma G.R.; Woolhouse, Mark E.J.; Tapio, Miika; Mbole-Kariuki, Mary Ndila; Sonstegard, Tad S.; Thumbi, Samuel Mwangi; Jennings, Amy; Conradie van Wyk, Ilana; Chase-Topping, Margo; Kiara, Henry; Toye, Philip G.; Coetzer, Jacobus A.W.; Bronsvoort, Barend Mark de Clare; Hanotte, Olivier (BioMed Central, 2013-11-09)BACKGROUND: Positive multi-locus heterozygosity-fitness correlations have been observed in a number of natural populations. They have been explained by the correlation between heterozygosity and inbreeding, and the negative ...
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Mbole-Kariuki, M.N.; Sonstegard, T.; Orth, A.; Thumbi, S.M.; Bronsvoort, B.M.deC.; Kiara, H.; Toye, P.; Conradie Van Wyk, Ilana; Jennings, A.; Coetzer, Jacobus A.W.; Woolhouse, M.E.J.; Hanotte, O.; Tapio, M. (Nature Publishing Group, 2014)The Kenyan East African zebu cattle are valuable and widely used genetic resources. Previous studies using microsatellite loci revealed the complex history of these populations with the presence of taurine and zebu genetic ...
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Conradie van Wyk, Ilana; Goddard, Amelia; Bronsvoort, Barend Mark de Clare; Coetzer, Jacobus A.W.; Booth, C.; Hanotte, Olivier; Jennings, Amy; Kiara, Henry; Mashego, P.; Muller, Carien; Pretorius, G.; Poole, E.M.; Thumbi, Samuel Mwangi; Toye, Philip G.; Woolhouse, Mark E.J.; Penzhorn, Barend Louis (Springer, 2013-09)This paper is the first attempt to accurately describe the hematological parameters for any African breed of cattle, by capturing the changes in these parameters over the first 12 months of an animal’s life using a ...
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Coetzer, Jacobus A.W.; Kellerman, T. Stephanus; Bigalke, R.D. (Published by The Government Printer, Pretoria, 1985)Various hepatogenous photosensitivity diseases of ruminants in South Africa, caused by plants, fungi and an alga, are described. Information is given on botanical, mycological, toxicological, clinical and pathological ...
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Callaby, Rebecca; Pendarovski, Cezar; Jennings, Amy; Mwangi, Samuel Thumbi; Van Wyk, Ilana; Mbole-Kariuki, Mary; Kiara, Henry; Toye, Philip G.; Kemp, Steve; Hanotte, Olivier; Coetzer, Jacobus A.W.; Handel, Ian G.; Woolhouse, Mark E.J.; De Clare Bronsvoort, Barend Mark (Nature Publishing Group, 2020-07-09)The Infectious Diseases of East African Livestock (IDEAL) project was a longitudinal cohort study of calf health which was conducted in Western Kenya between 2007–2010. A total of 548 East African shorthorn zebu calves ...
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Conradie van Wyk, Ilana; Goddard, Amelia; Bronsvoort, Barend Mark de Clare; Coetzer, Jacobus A.W.; Handel, Ian Graham; Hanotte, Olivier; Jennings, Amy; Lesosky, Maia; Kiara, Henry; Thumbi, Samuel Mwangi; Toye, Philip G.; Woolhouse, Mark W.; Penzhorn, Barend Louis (Cambridge University Press, 2014)The cumulative effect of co-infections between pathogen pairs on the haematological response of East African Short-horn Zebu calves is described. Using a longitudinal study design a stratified clustered random sample of ...
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Mapaco, Lourenco Paulo; Coetzer, Jacobus A.W.; Paweska, Janusz Tadeusz; Venter, Estelle Hildegard (OpenJournals Publishing, 2012-10-04)In 2008, a suspected outbreak of Rift Valley fever (RVF) was reported on a farm in the Bela-Bela area, Limpopo Province, South Africa. Seven calves died on the affected dairy farm, where no RVF vaccination programme was ...
Now showing items 1-20 of 48