Browsing Paraclinical Sciences by UP Author "Van Wilpe, Erna"

Browsing Paraclinical Sciences by UP Author "Van Wilpe, Erna"

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  • Analytical confirmation of Xanthium strumarium poisoning in cattle 
    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 ...
  • Comparative pathology of neurovirulent lineage 1 (NY99/385) and lineage 2 (SPU93/01) West Nile virus Infections in BALBc mice 
    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 ...
  • Detection and characterisation of papillomavirus in skin lesions of giraffe and sable antelope in South Africa 
    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. ...
  • Nemaline myopathy in a six-month-old pomeranian dog 
    Bester, Elizabeth G.; Kitshoff, Adriaan Mynhardt; Botha, W.J.; Van Wilpe, Erna; Du Plessis, Lizette; Williams, J.H. (June Heather) (Medpharm Publications, 2022)
    Nemaline myopathy - a clinically and genetically complex heterogenous group of disorders - is described uncommonly in humans and rarely in animals, and is characterised by progressive muscle weakness. The diagnosis is ...
  • The occurrence of dermatosparaxis in a commercial Drakensberger cattle herd in South Africa 
    Holm, Dietmar Erik; Van Wilpe, Erna; Harper, Cindy Kim; Duncan, N.M. (Neil) (South African Veterinary Association, 2008-03)
    Dermatosparaxis is a heritable collagen dysplasia causing skin extensibility and fragility. In Belgian Blue cattle this mutation has been described as a 3 base pair (bp) change followed by a 17 bp deletion in the gene ...
  • Paraquat intoxication and associated pathological findings in three dogs in South Africa 
    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 ...
  • Pathology and immunohistochemistry of papillomavirus-associated cutaneous lesions in Cape mountain zebra, giraffe, sable antelope and African buffalo in South Africa 
    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 ...
  • Pathology of fatal lineage 1 and 2 West Nile virus infections in horses in South Africa 
    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, ...
  • Shuni virus as cause of neurologic disease in horses 
    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 ...
  • Sindbis and Middelburg old world alphaviruses associated with disease in horses, South Africa 
    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 ...