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Tonsillar lesions in cattle naturally infected with Mycobacterium bovis
Author(s) -
Cassidy J. P.,
Bryson D. G.,
Neill S. D.
Publication year - 1999
Publication title -
veterinary record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.261
H-Index - 99
eISSN - 2042-7670
pISSN - 0042-4900
DOI - 10.1136/vr.144.6.139
Subject(s) - palatine tonsil , mycobacterium bovis , respiratory tract , lymph , pathology , pharynx , tuberculin , medicine , biology , respiratory system , tuberculosis , anatomy , mycobacterium tuberculosis
The upper respiratory tract surfaces, the palatine and pharyngeal tonsils and associated lymph nodes of 32 tuberculin reactor cattle were examined pathologically and bacteriologically. Tuberculous lesions were observed histologically in the palatine tonsils of five animals and in both the palatine and pharyngeal tonsils of a sixth. Mycobacterium bovis was cultured from the tonsils of four of these animals and from the palatine or pharyngeal tonsils of a further eight cattle in which no lesions were observed. The upper respiratory tract surfaces of 10 animals were M bovis ‐positive.