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Browsing Research Articles (Paraclinical Sciences) by Author "Williams, June Heather"
Now showing items 1-20 of 23
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Botha, C.J. (Christoffel Jacobus); Lessing, Dries; Rosemann, Gertruida Magdalena; Van Wilpe, Erna; Williams, June Heather (Sage, 2014-07-10)Xanthium strumarium, commonly referred to as “cocklebur,” rarely causes poisoning in cattle. When mature, this robust, annual weed bears numerous oval, brownish, spiny burs. Only the seeds in the burs and young seedlings ...
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Pulker, Tamsyn A.; Carstens, Ann; Williams, June Heather (South African Veterinary Association, 2011-06)Rabbits obtained from a South African rabbit breeder exhibited deformities of the distal forelimbs. The clinical, radiological and histological presentation of mid-antebrachial valgus formation (a.k.a distal foreleg ...
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Williams, June Heather; Bester, Lynette; Venter, Linda; Pretorius, D.; Greyling, F. (South African Veterinary Association, 2011-12)Zoo animals, including tigers, have been reported to suffer from barbiturate intoxication, with pentabarbitone being most commonly recorded. Clinical signs range from mild ataxia to general anaesthesia with recovery over ...
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Tompkins, Samantha; Fosgate, Geoffrey Theodore; Williams, June Heather; Clift, Sarah Jane (BMJ Publishing Group, 2020-02)Cutaneous neoplasia occurs commonly in dogs and owners in consultation with their veterinarian must decide when to perform surgery to obtain a histopathological diagnosis. The objective of this study was to identify breed ...
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Williams, June Heather; Mentoor, Juliet Lewie Dionee; Van Wilpe, Erna; Venter, Marietjie (Sage, 2015-01)The pathology in mice infected with neurovirulent South African lineage 2 West Nile virus (WNV) strains has not previously been described. Three- to 4-month-old male BALBc mice were infected with South African neurovirulent ...
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Van Dyk, Enette; Bosman, Anna-Mari; Van Wilpe, Erna; Williams, June Heather; Bengis, Roy G.; Van Heerden, J.; Venter, Estelle Hildegard (South African Veterinary Association, 2011-04)Papillomavirus was detected electron microscopically in cutaneous fibropapillomas of a giraffe (Giraffa camelopardalis) and a sable antelope (Hippotragus niger). The virus particles measured 45 nm in diameter. ...
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Claassen, Drienie D.; Odendaal, Lieza; Sabeta, Claude; Fosgate, Geoffrey Theodore; Mohale, Debra; Williams, June Heather; Clift, Sarah Jane (Sage, 2023-05)We estimated the diagnostic sensitivity (DSe) and specificity (DSp) of an immunohistochemistry (IHC) protocol compared to the direct fluorescent antibody test (DFAT), which is the gold standard test for rabies diagnosis. ...
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Ibrahim, Mohammed I.A.; Williams, June Heather; Botha, C.J. (Christoffel Jacobus) (Elsevier, 2021-04)Di-n-butyl phthalate (DBP) is widely used as a plasticizer in personal care and medical products and is known to induce toxicity in the male reproductive organs in both mammals and birds. In this study, there was investigation ...
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Tahergorabi, Zoya; Rahmani, Hadiseh; Williams, June Heather; Moodi, Mitra (Springer, 2020-07)A growing body of evidence indicates that opioids regulate mechanisms activated during the stress response. This study was aimed to investigate the effect of methadone dependency on blood glucose, lipids and glucose-modulating ...
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Snyman, Jumari; Koekemoer, Otto; Van Schalkwyk, Antoinette; Van Vuren, Petrus Jansen; Snyman, Louwtjie P.; Williams, June Heather; Venter, Marietjie (MDPI, 2021-03)Equine encephalosis virus (EEV) is a neglected virus endemic to South Africa and is considered to generally result in mild disease in equines. Specimens were analyzed from live horses that presented with undefined ...
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Motlou, Thopisang; Williams, June Heather; Venter, Marietjie (MDPI, 2021-05-19)The Orthobunyavirus genus, family Peribunyaviridae, contains several important emerging and re-emerging arboviruses of veterinary and medical importance. These viruses may cause mild febrile illness, to severe encephalitis, ...
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Fatal neurologic disease and abortion in mare infected with lineage 1 West Nile virus, South Africa Venter, Marietjie; Human, Stacey; Van Niekerk, Stephanie; Williams, June Heather; Van Eeden, Charmaine; Freeman, Frank (Coordinating Center for Infectious Diseases, Centers for Disease Control and Prevention, 2011-08)In 2010, lineage 1 West Nile virus was detected in South Africa in the brain of a pregnant mare that succumbed to neurologic disease and in her aborted fetus, suggesting an association with abortion in horses. All West ...
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Williams, June Heather; Whitehead, Zandri; Van Wilpe, Erna (AOSIS OpenJournals, 2016-09-09)Paraquat is a bipyridylium non-selective contact herbicide commonly used worldwide. When ingestion occurs by humans and animals either accidentally, intentionally or maliciously, paraquat selectively accumulates in the ...
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Williams, June Heather; Van Dyk, Enette; Nel, Petrus Johannes; Lane, Emily P.; Van Wilpe, Erna; Bengis, Roy G.; De Klerk-Lorist, Lin Mari; Van Heerden, J. (South African Veterinary Association, 2011-05)Skin lesions associated with papillomaviruses have been reported in many animal species and man. Bovine papillomavirus (BVP) affects mainly the epidermis, but also the dermis in several species including bovine, the ...
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Williams, June Heather; Van Niekerk, Stephanie; Human, Stacey; Van Wilpe, Erna; Venter, Marietjie (OpenJournals Publishing, 2014-09-10)Since 2007, West Nile virus (WNV) has been reported in South African horses, causing severe neurological signs. All cases were of lineage 2, except for one case that clustered with lineage 1 viruses. In the present study, ...
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Sabeta, Claude Taurai; Janse van Rensburg, Driene; Phahladira, McLedwaba Nkgobe Baby; Mohale, Debrah; Harrison-White, Robert F.; Esterhuyzen, Carlien; Williams, June Heather (AOSIS, 2018-04)Both domestic and wild carnivore species are commonly diagnosed with rabies virus (RABV) infection in South Africa. Although the majority of confirmed rabies cases in wild carnivore species are reported from the yellow ...
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Van Eeden, Charmaine; Williams, June Heather; Gerdes, Truuske G.H.; Van Wilpe, Erna; Viljoen, Adrienne; Swanepoel, Robert; Venter, Marietjie (Coordinating Center for Infectious Diseases, Centers for Disease Control and Prevention, 2012-02)To determine which agents cause neurologic disease in horses, we conducted reverse transcription PCR on isolates from of a horse with encephalitis and 111 other horses with acute disease. Shuni virus was found in 7 ...
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Van Niekerk, Stephanie; Human, Stacey; Williams, June Heather; Van Wilpe, Erna; Pretorius, Marthi Andréa; Swanepoel, Robert; Venter, Marietjie (Centers for Disease Control & Prevention, 2015-12)Old World alphaviruses were identified in 52 of 623 horses with febrile or neurologic disease in South Africa. Five of 8 Sindbis virus infections were mild; 2 of 3 fatal cases involved co-infections. Of 44 Middelburg ...
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Poore, Luke Alexander; Smit, Yolandi; Williams, June Heather; Steenkamp, Gerhardus (Wiley, 2019-07)An 11‐year‐old Thoroughbred mare was diagnosed with sialolithiasis of the right parotid salivary duct. A firm nonpainful subcutaneous mass was palpable in the right maxillary region adjacent to premolar 4 (tooth 108). ...
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Poore, Luke Alexander; Smit, Yolandi; Duncan, N.M. (Neil); Williams, June Heather (Wiley, 2019-12)A 25 year‐old American Paint gelding was referred to the Onderstepoort Academic Veterinary Hospital with an ulcerated lesion of nonpigmented skin at the right lateral aspect of the perianal region. An infiltrating squamous ...
Now showing items 1-20 of 23