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Ten strains of atypical mycobacteria originally isolated from cattle were inoculated into cattle. Each strain was injected subcutaneously into one animal and into a mesenteric lymph node of another. Four weeks and 10 weeks after inoculation the cattle were tuberculin tested with bovine PPD, avian PPD and appropriate homologous PPD. Three strains produced a significant level of sensitivity to bovine PPD at the 4-week test but by the 10-week test no animal gave a significant response. The sensitivity to all tuberculins was less at the 10-week test than at the 4-week test. At both tests the response to avian PPD was equal to or exceeded that to bovine PPD. Of 4 strains originally from cattle sensitive to mammalian tuberculin only 2 produced sensitivity of bovine PPD in this experiment. Cultural isolation of mycobacteria from necropsy material was correlated neither with sensitivity to bovine PPD nor with the presence of lesions.
L A Corner, and
C W Pearson
May 1981,
Australian veterinary journal,
L A Corner, and
C W Pearson
January 1964,
Health laboratory science,
L A Corner, and
C W Pearson
August 1962,
Annales de la Societe belge de medecine tropicale (1920),
L A Corner, and
C W Pearson
October 1975,
Bibliotheca haematologica,
L A Corner, and
C W Pearson
January 1996,
Research in immunology,
L A Corner, and
C W Pearson
February 1970,
Kekkaku : [Tuberculosis],
L A Corner, and
C W Pearson
January 1976,
Salud publica de Mexico,
L A Corner, and
C W Pearson
November 1973,
Research in veterinary science,
L A Corner, and
C W Pearson
February 1964,
Revista de la Asociacion Medica Argentina,
L A Corner, and
C W Pearson
September 1942,
The American journal of pathology,
