2Comparative cervical tuberculin skin test after 180 days of comingling. 3Feces and oronasal swab samples collected prior to comingling and on days 14, 28, 42, 56, 89 and 179 days of comingling. Isolate (sampling day after comingling). 4Isolation of mycobacteria from tissues collected at necropsy after 180 days of comingling. Neg = no mycobacteria isolated. 5For bacteriological isolation of mycobacteria, tissues were allocated into one of three pools; head (mandibular, parotid and medial retropharyngeal lymph nodes), thoracic (lung, mediastinal and tracheobronchial lymph nodes), or abdominal (mesenteric and hepatic lymph nodes). 6Unspeciated mycobacteria later identifi ed by PCR as M. bovis BCG Danish. 7Deer died due to trauma unrelated to the experimental protocol prior to end of study. UIM = Unspeciated mycobacteria found not to be M. bovis BCG Danish by PCR. NA = not applicable. ND = not done. |
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Table 2: Summary of intradermal tuberculin test and bacteriological culture results from Mycobacterium bovis BCG Danish vaccinated deer co-mingled with unvaccinated deer for 180 days. |