| use of the intradermal tuberculin test in a herd of captive elk (cervus elaphus nelsoni) naturally infected with mycobacterium bovis. | in the united states, tuberculosis of captive cervids, caused by mycobacterium bovis, attracted attention in 1991 when investigations, prompted by the identification of a tuberculous elk (cervus elaphus nelsoni) of u.s. origin exported to canada, revealed tuberculosis in 10 different elk herds in 8 different states. based on methods used in cattle, official regulations pertaining to testing and eradication of tuberculosis in captive cervids were added to the u.s. department of agriculture bovine ... | 2011 | 21398465 |