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Browsing by UP Author "Thomson, G.R. (Gavin)"
Now showing items 1-17 of 17
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Thomson, G.R. (Gavin); Neser, J.A.; Phillips, T.; Gainaru, M.D.; Coetzee, T.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1986)Replicating and mature viral particles were detected with the transmission electron microscope in blood platelets of pigs infected with virulent haemadsorbing and non-haemadsorbing African swine fever virus isolates. ...
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Thomson, G.R. (Gavin); Penrith, Mary-Louise; Atkinson, M.W.; Atkinson, S.J.; Cassidy, D.; Osofsky, S.A. (Wiley-Blackwell, 2013-12)Biodiversity conservation, of which the transfrontier conservation area movement is an integral part, and more effective livestock production/trade are pivotal to future rural development in southern Africa. For that ...
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Thomson, G.R. (Gavin); Esterhuysen, J.J.; Flamand, J.R.B.; Bengis, Roy G.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1985)A total of 594 sera collected from buffalo (Syncerus caffer) in the Hluhluwe/Umfolozi Game Reserve complex, Ndumu Game Reserve and the eastern shores of Lake St Lucia were examined for antibody to SAT 1, 2 and 3 types of ...
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Bamhare, C.; Thomson, G.R. (Gavin); Latif, Abdalla A.; Mulumba, Misheck; Chisembele, C.; Derah, N.; Mataa, L.; Mokopasetso, M.; Dlamini, P.; Jamal, S.; De Klerk, G.; Letuka, O.; Chikungwa, P.; Mumba, T.; Dombolo, E.F.; Wanda, G.; Munstermann, Susanne; Van Schalkwyk, Louis; Gummow, Bruce; Hendrickx, G.; Berkvens, Dirk; Marcotty, Tanguy; Thys, Eric; Van den Bossche, Peter (South African Veterinary Association, 2007-06)A workshop to produce recommendations on training requirements for improved epidemiosurveillance of livestock diseases in southern Africa was organised at the Department of Veterinary Tropical Diseases in the Veterinary ...
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Thomson, G.R. (Gavin); King, A.A.; Meredith, C.D.; Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Verwoerd, Daniel Wynand (Pretoria : Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)Historical records suggest that in South Africa rabies was present in viverrids in the early 1800s. In the early 1950s a wave of canine rabies spread from Namibia through Botswana into the northern Transvaal and by 1961 ...
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Thomson, G.R. (Gavin); Bigalke, R.D. (Published by The Government Printer, Pretoria, 1985)The known distribution of African swine fever (ASF) virus in Africa is reviewed in relation to the distributions of its free-living hosts as are the infection rates of these species in different localities in southern ...
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Thomson, G.R. (Gavin); Fosgate, Geoffrey Theodore; Penrith, Mary-Louise (Wiley, 2015)A matrix system was developed to aid in the evaluation of the technical amenability to eradication, through mass vaccination, of transboundary animal diseases (TADs). The system involved evaluation of three basic criteria ...
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Thomson, G.R. (Gavin); Braack, L.E.O.; Doube, B.M.; Gainaru, M.D.; Bengis, Roy G.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1988)In 2 separate experiments the blood-feeding fly Haematobia thirouxi potans (Bezzi) failed to transmit foot and- mouth disease virus when transferred from viraemic (log 2,6 - log 4,3 MLD₅₀ or TCID₅₀/ml) to susceptible ...
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Scoones, Ian; Bishi, Alec; Mapitse, Neo; Moerane, Rebone; Penrith, Mary-Louise; Sibanda, Ronny; Thomson, G.R. (Gavin); Wolmer, William (Practical Action, 2010-07)Focusing on the case of foot and mouth disease (FMD) in southern Africa – and specifi cally Botswana, Namibia, South Africa and Zimbabwe – this paper explores the economic, social and political trade-offs arising from ...
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Thomson, G.R. (Gavin); Bengis, Roy G.; Hedger, R.S.; Pini, Attilio; De Vos, Valerius; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1986)Ten pregnant buffalo cows, six of which were subsequently shown to be carriers of SAT 1, 2 and 3 viruses, were captured in the Kruger National Park (KNP) and allowed to calve in captivity. The buffalo cows and calves were ...
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Thomson, G.R. (Gavin); Gainaru, M.D.; Esterhuysen, Jan J.; Bruce, W.; Pini, Attilio; Bengis, Roy G.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1986)Three groups of young buffalo in captivity were infected by exposing them to similar buffalo in the acute stages of infection induced by needle inoculation with SAT 1 or 2 viruses. Clear foot lesions developed in most of ...
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Thomson, G.R. (Gavin); Penrith, Mary-Louise; Atkinson, M.W.; Thalwitzer, S.; Mancuso, A.; Atkinson, S.J.; Osofsky, S.A. (Wiley-Blackwell, 2013-12)A case is made for greater emphasis to be placed on value chain management as an alternative to geographically based disease risk mitigation for trade in commodities and products derived from animals. The geographic ...
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Nel, Louis Hendrik; Thomson, G.R. (Gavin); Von Teichman, B.F.; Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)Nucleic acid sequence analysis was used to determine the phylogenetic relationships amongst rabies viruses isolated from typical canid hosts such as bat-eared fox, jackal and dog in South Africa (SA). Geographical factors ...
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Thomson, G.R. (Gavin); Esterhuysen, J.J.; Gainaru, M.D.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)An indirect ELISA incorporating a protein A-peroxidase conjugate was developed for detecting antibodies to swine vesicular disease virus (SVDV) in pig sera. This test and a conventional virus neutralization test were found ...
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Thomson, G.R. (Gavin); Meredith, C.D.; Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)Rabies in bat-eared foxes was first recognized in South Africa in 1955 and is likely to have been derived from canine rabies introduced to South Africa in 1950. Since then it has become established in this species in the ...
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Thomson, G.R. (Gavin); Blouin, E.; Potgieter, F.T.; Van Vuuren, C.DeW.J; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)The potential of the ixodid tick, Rhipicephalus zambeziensis, was investigated as a vector in the transstadial transmission of the foot-and-mouth disease virus by feeding nymphae on viraemic (log 1,0-4,0 TCID₅₀/ml) cattle. ...
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Thomson, G.R. (Gavin); Esterhuysen, J.J.; Ashford, W.A.; Lentz, D.W.; Gainaru, M.D.; Sayer, A.J.; Meredith, C.D.; Janse Van Rensburg, D.; Pini, Attilio; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1988)In an examination of 34 southern African SAT-type foot-and-mouth disease viruses, all but 1 attained satisfactory levels of infectivity within 6 passages in rolled BHK₂₁monolayer cell cultures. However, there were marked ...
Now showing items 1-17 of 17