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Browsing by UP Author "Williams, Mark C."
Now showing items 1-15 of 15
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Botha, C.J. (Christoffel Jacobus); Lewis, Alex; Du Plessis, Elizabeth C.; Clift, Sarah Jane; Williams, Mark C. (American Association of Veterinary Laboratory Diagnosticians, 2012-09-18)Twenty-eight horses in southern Mozambique died after exhibiting severe respiratory distress. At necropsy, the overinflated lungs did not collapse, had prominent rib impressions, and were fibrotic and emphysematous. ...
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Bruns, Angela C.; Tanner, Manfred; Williams, Mark C.; Botha, Louise; O’Brien, Amanda; Fosgate, Geoffrey Theodore; Van Helden, Paul David; Clarke, John; Michel, Anita Luise (Wildlife Disease Association, 2017-01)Bovine tuberculosis (bTB) was first diagnosed in the Kruger National Park (KNP) in 1990. Research has since focused on the maintenance host, the African buffalo (Syncerus caffer) and clinically affected lion (Panthera ...
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Alexander, Kathleen A.; Sanderson, Claire E.; Larsen, Michelle H.; Robbe-Austerman, Suelee; Williams, Mark C.; Palmer, Mitchell V. (American Society for Microbiology, 2016-05-10)An emerging Mycobacterium tuberculosis complex (MTC) pathogen, M. mungi, infects wild banded mongooses (Mungos mungo) in Northern Botswana, causing significant mortality. This MTC pathogen did not appear to be ...
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Gers, S.; Vosloo, Wilna; Drew, Tessa M.; Lubisi, Baratang Alison; Pardini, A.; Williams, Mark C. (Wiley-Blackwell, 2011-04)Wild African Suidae, the common warthog (Phacochoerus africanus) and bushpig (Potamochoerus larvatus), were experimentally infected with classical swine fever (CSF) virus following the diagnosis of CSF subtype 2.1 in ...
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Bumpy, M.M.; Williams, Mark C.; Steyl, Johan Christian Abraham; Lutermann, Heike; Fosgate, Geoffrey Theodore; De Waal, Pamela Jean; Mitha, Janishtha R.; Clift, Sarah Jane; Harrison-White, R. (BioMed Central, 2017-08-16)BACKGROUND : The pathology of spirocercosis, a disease caused by the infestation of carnivores with the nematode Spirocerca lupi, has been extensively described in domestic dogs and coyotes. However, it has not been ...
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Labuscagne, Annemarie; Spencer, B.T. (Brian Tom); Picard, J.A.; Williams, Mark C. (OpenJournals Publishing, 2012-12-13)Necropsies were performed on 36 grower pigs that died peracutely on farms in the northern parts of South Africa. All these pigs were suffering from haemorrhagic enteritis and suspected toxaemia. Samples of the duodenum, ...
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Alexander, Kathleen A.; Laver, Peter N.; Michel, Anita Luise; Williams, Mark C.; Van Helden, Paul David; Warren, Robin M.; Gey van Pittius, Nicolaas C. (Coordinating Center for Infectious Diseases, Centers for Disease Control and Prevention, 2010-08)Seven outbreaks involving increasing numbers of banded mongoose troops and high death rates have been documented. We identified a Mycobacterium tuberculosis complex pathogen, M. mungi sp. nov., as the causative agent ...
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Williams, Mark C.; Bastianello, Stella S.; Nesbit, J.W.; Lange, A. Lucia; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)The gross and histopathological lesions of 10 cases in a natural outbreak of aflatoxicosis amongst dogs in the Republic of South Africa are reported. The 10 cases were classified as acute (1 case), subacute (7 cases) and ...
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Williams, Mark C.; Verwoerd, Daniel Wynand (Published by the Government Printer, Pretoria., 1990)Poisoning with the plant Lasiospermum bipinnatum was studied in 9 lambs. Intraruminal doses, varying from 1-12 g/kg/day of dried plant, were administered to 8 animals and 1 was fed 2,5 g/kg/day of the material mixed with ...
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Williams, Mark C.; Verwoerd, Daniel Wynand (Published by the Government Printer, Pretoria., 1990)Poisoning with the plant Lasiospermum bipinnatum was studied in 9 lambs at various dose levels. Dyspnoea and tachypnoea, which were dose-related, were observed in 4 of the lambs. Gross and microscopic pulmonary lesions ...
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Alexander, Kathleen A.; Laver, Peter N.; Williams, Mark C.; Sanderson, Claire E.; Kanipe, Carly; Palmer, Mitchell V. (Sage, 2018)Wild banded mongooses (Mungos mungo) in northeastern Botswana and northwest Zimbabwe are infected with a novel Mycobacterium tuberculosis complex (MTC) pathogen, Mycobacterium mungi. We evaluated gross and histologic lesions ...
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Gous, Tertius A.; Williams, Mark C. (Agricultural Research Council, ARC-OVI and the University of Pretoria, 2009-12)The first detailed description of the pathology of tuberculosis, caused by Mycobacterium tuberculosis, in springbok is reported. The springbok were part of a semi-free-ranging herd kept on the grounds of iThemba Laboratory ...
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Dvir, Eran; Clift, Sarah Jane; Williams, Mark C. (Elsevier, 2010-02)This study aims to outline the histological progression of the Spirocerca lupi nodule from infection to neoplastic transformation. Sixty-two spirocercosis-induced nodules, 42 non-neoplastic and 20 neoplastic, were stained ...
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Van der Merwe, Liesel Laura; Kirberger, Robert M.; Clift, Sarah Jane; Williams, Mark C.; Keller, Ninette; Naidoo, Vinny (Elsevier, 2008)Spirocercosis is a disease occurring predominantly in Canidae, caused by the nematode Spirocerca lupi. Typical clinical signs are regurgitation, vomiting and dyspnoea. The life-cycle involves an intermediate (coprophagous ...
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Clift, Sarah Jane; Williams, Mark C.; Gerdes, Truuske G.H.; Smit, Marie M.E. (American Association of Veterinary Laboratory Diagnosticians, 2009)An immunoperoxidase assay for the detection of African horse sickness virus (AHSV) in formalin-fixed tissues is a valuable tool in the study of the pathogenesis of the disease, as well as a useful addition to existing ...
Now showing items 1-15 of 15