An evaluation of tuberculin skin tests used to diagnose tuberculosis in swamp buffaloes (Bubalus bubalis)

Prev Vet Med. 1999 Mar 29;39(2):129-35. doi: 10.1016/s0167-5877(98)00148-2.

Abstract

Three types of tuberculin tests were evaluated in swamp buffaloes in two herds of known tuberculosis-positive and tuberculosis-negative status, and the results were compared with postmortem records of 73 tuberculous and 12 non-tuberculous buffaloes from a different herd. Of the 73 tuberculous swamp buffaloes, 30 (41%), 46 (63%) and 56 (77%) animals were detected by the caudal-fold skin test, the cervical skin test and the Stormont test, respectively. Of the 12 non-tuberculous buffaloes, 5 (42%), 4 (34%), and 10 (83%) reacted to the above-mentioned three tuberculin tests, respectively. The reaction was more-pronounced in the cervical skin than in the caudal-fold skin when the single intradermal test was used on the same individual. The Stormont test (a form of the double intradermal test) was the most-sensitive but least-specific test. We concluded that the tuberculin tests described showed poor sensitivity and specificity in swamp buffaloes. Another diagnostic procedure should thus be sought for more-accurate diagnosis.

MeSH terms

  • Animals
  • Buffaloes
  • Cattle
  • Diagnosis, Differential
  • Female
  • Male
  • Mycobacterium bovis*
  • Sensitivity and Specificity
  • Tuberculin Test / standards
  • Tuberculin Test / veterinary*
  • Tuberculosis / diagnosis
  • Tuberculosis / veterinary*