| Visceral caseous lymphadenitis in thin ewe syndrome: isolation of Corynebacterium, Staphylococcus, and Moraxella spp from internal abscesses in emaciated ewes. | |
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MedLine Citation:
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PMID: 525916 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The relationship between the visceral form of caseous lymphadenitis and a chronic debilitating condition of mature sheep designated as the thin ewe syndrome was investigated. Internal abscesses were found during necropsy in 81% of animals with thin ewe syndrome and Corynebacterium pseudotuberculosis (C ovis) was recovered from 86% of the animals with internal abscesses. Other pyogenic bacteria, including C pyogenes, C equi, Staphylococcus epidermis, S aureus, and Pseudomonas aeruginosa were often recovered in association with C pseudotuberculosis. Moraxella sp was recovered in 41% of the animals with internal abscesses. In some abscesses, Moraxella sp was the dominant microorganism isolated and in others, they were outnumbered only by C pseudotuberculosis. Species isolated included M bovis, M osloensis, and M nonliquefaciens. The potential importance of Moraxella sp to the cause and pathogenesis of the thin ewe syndrome is not known. The results of the present study indicate that visceral caseous lymphadenitis is either an important contributing factor to the development of thin ewe syndrome or that the presence of thin ewe syndrome may predispose affected sheep to the development of visceral caseous lymphadenitis. A skin test reagent prepared by sonicating C pseudotuberculosis was of limited value in detecting animals with visceral caseous lymphadenitis. Only 56% of the animals with abscesses caused by C pseudotuberculosis gave positive delayed-type hypersensitivity skin test responses. |
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Authors:
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H W Renshaw; V P Graff; N L Gates |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: American journal of veterinary research Volume: 40 ISSN: 0002-9645 ISO Abbreviation: Am. J. Vet. Res. Publication Date: 1979 Aug |
Date Detail:
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Created Date: 1980-03-27 Completed Date: 1980-03-27 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0375011 Medline TA: Am J Vet Res Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1110-4 Citation Subset: IM |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Abscess
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microbiology Animals Corynebacterium / isolation & purification* Female Lymphadenitis / complications, microbiology, veterinary* Moraxella / isolation & purification* Sheep Sheep Diseases / etiology, microbiology* Staphylococcus / isolation & purification* |
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