Caseous lymphadenitis in a commercial ram stud in Scotland

Scott, Phil; Collie, David; Hume, L.

doi:10.1136/vr.141.21.548

Cited by 13 publications

(3 citation statements)

References 4 publications

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“…Caseous lymphadenitis was first reported in the UK in 1990, in goats that had been in contact with imported Boer goats (Harker 1990). It was first reported in UK sheep in 1991 (Robins 1991) and since then the disease has been reported in sheep throughout the UK (Laven and others 1997, Rizvi and others 1997, Scott and others 1997) and its prevalence appears to be increasing (Connor and others 2000). Its impact has not been quantified, but the disease may decrease the value of pedigree sheep or possibly lead to the condemnation of finished lamb and/or cull sheep carcases.…”

Section: Methodsmentioning

confidence: 99%

Postal survey of ovine caseous lymphadenitis in the United Kingdom between 1990 and 1999

Binns

Green

Bailey³

2002

Veterinary Record

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Members of the Sheep Veterinary Society and three terminal sire breed societies (A, B and C) were surveyed to investigate the prevalence and characteristics of ovine caseous lymphadenitis in the UK. In total, 264 veterinary surgeons and 510 farmers responded. Eighteen per cent of the vets had seen at least one case of the disease, and 45 per cent of the farmers had seen abscesses in their sheep. Relatively few farmers had had the cause of the abscesses investigated, but 24 of the 32 flocks that had submitted samples to a laboratory had had the disease confirmed. The incidence of the disease and abscesses increased from 1990 to 1999. The disease was more likely to be investigated in certain breeds and when male sheep had abscesses. Risk factors for the disease included the presence of sheep of breed B in the flock, the presence of half-bred sheep, showing sheep, and the use of shearing contractors. Dipping sheep appeared to be protective.

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Section: Methodsmentioning

confidence: 99%

Postal survey of ovine caseous lymphadenitis in the United Kingdom between 1990 and 1999

Binns

Green

Bailey³

2002

Veterinary Record

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“…Several reports mention that weight loss could add the possibility of C Pseudotuberculosis infection in differential diagnosis (Lofstedt 2002, Baird and Fontaine 2007, Radostits 2007, Valli 2007, Grant and Newman 2007, but the typical symptom of external abscesses was not noticed in our case. Radiography and ultrasonography could be helpful for the diagnosis of this case (Scott et al 1997), but the clinical findings were not suggestive for these specific examinations. Necropsy was the most reliable examination, which suggested the diagnosis, since the finding of internal abscesses confirmed the hypothesis above.…”

Section: Discussionmentioning

confidence: 77%

A case of kidney infection by Corynebacterium pseudotuberculosis in sheep

Papaioannou

Zavlaris

Giadinis

et al. 2017

J Hellenic Vet Med Soc

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A three year-old female sheep was presented to the Clinic of Farm Animals, School of Veterinary Medicine, Aristotle University of Thessaloniki, with mild nasal seromucous discharge and progressive weight loss, while rectal temperature was normal. Hematological examination revealed mild leukocytosis, while traces of hemoglobin and protein were found in urinalysis. The animal was euthanized and forwarded for necropsy. An extremely enlarged, nodular right kidney, whose renal parenchyma was completely replaced by multiple abscesses, was the remarkable finding of the necropsy. Microbiological and molecular examinations were performed to establish the diagnosis and rule out Maedi/Visna infection. Tissue samples from the kidney and other organs were, also, examined histologically. Corynebacterium pseudotuberculosis was isolated in microbiological tests. A kidney infection by C. pseudotuberculosis, presented as a clinical case with scant symptoms, is discussed in this case report.

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“…Furthermore, direct microscopy can be limited, especially when sampling old and calcified lesions. Haematological changes (ie, neutrophilia and lymphocytosis) were described by Scott and others (1997) in affected animals, but these are non-specific changes.…”

Section: Diagnosismentioning

confidence: 99%

Update on caseous lymphadenitis in sheep

Gascoigne¹,

Ogden²,

Lovatt³

et al. 2020

In Practice

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Background: Caseous lymphadenitis (CLA), caused by the gram-positive bacteria Corynebacterium pseudotuberculosis, has been present in Great Britain since the 1980s and is now considered endemic. CLA is considered to be an iceberg disease; that is, it is a production-limiting disease, characterised by slow insidious onset, that has production-limiting effects in a larger proportion of the flock than is exhibiting clinical signs at any given point in time.Aim of the article: The disease has been previously reviewed in In Practice (Baird 2003). In this article we consider updates in our understanding of the pathology, risk factors for flocks and the challenges of initiating control where the cost of the disease is still relatively unquantified.

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Caseous lymphadenitis in a commercial ram stud in Scotland

Cited by 13 publications

References 4 publications

Postal survey of ovine caseous lymphadenitis in the United Kingdom between 1990 and 1999

Postal survey of ovine caseous lymphadenitis in the United Kingdom between 1990 and 1999

A case of kidney infection by Corynebacterium pseudotuberculosis in sheep

Update on caseous lymphadenitis in sheep

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