Controlling tuberculosis in a llama (Lama glama) herd using clinical signs, tuberculin skin testing and serology

D. F. Twomey, R. Collins, M. P. Cranwell, T. R. Crawshaw, Robert Higgins, G. S. Dean, H. M. Vordermeier, A. Hollingdale, R. de la Rua-Domenech

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

An outbreak of tuberculosis (TB), caused by Mycobacterium bovis, was investigated in a small herd of llamas (Lama glama). Based on three ante-mortem diagnostic methods (clinical signs, tuberculin skin test reactions, and 'Rapid Test' serology), 12 llamas were selected for examination post-mortem. Grossly visible lesions suspicious of TB were observed in eight animals, four of which had exhibited clinical signs, one was a skin test 'reactor', and three had been seropositive. M. bovis was isolated from seven of these eight animals. Clinical signs combined with serology were found to be useful in identifying infected animals, but tuberculin skin testing had limited negative predictive value as four llamas that were subsequently confirmed as infected were not detected using this assay.

Original languageEnglish (US)
Pages (from-to)246-248
Number of pages3
JournalVeterinary Journal
Volume192
Issue number2
DOIs
StatePublished - May 1 2012
Externally publishedYes

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Keywords

  • Clinical disease
  • Llama (Lama glama)
  • Rapid Test serology
  • Tuberculin skin test
  • Tuberculosis

ASJC Scopus subject areas

  • Animal Science and Zoology
  • veterinary(all)

Cite this

Twomey, D. F., Collins, R., Cranwell, M. P., Crawshaw, T. R., Higgins, R., Dean, G. S., Vordermeier, H. M., Hollingdale, A., & de la Rua-Domenech, R. (2012). Controlling tuberculosis in a llama (Lama glama) herd using clinical signs, tuberculin skin testing and serology. Veterinary Journal, 192(2), 246-248. https://doi.org/10.1016/j.tvjl.2011.05.014