AN EVALUATION OF THE COMPARATIVE TUBERCULIN SKIN-TEST FOR DETECTING TUBERCULOSIS IN FARMED DEER

被引:35
作者
CORRIN, KC
CARTER, CE
KISSLING, RC
DELISLE, GW
机构
[1] WALLACEVILLE ANIM RES CTR, CENT ANIM HLTH LAB, POB 40-063, UPPER HUTT, NEW ZEALAND
[2] MINIST AGR & FISHERIES, WELLINGTON, NEW ZEALAND
[3] MINIST AGR & FISHERIES, WANGANUI, NEW ZEALAND
[4] NEW ZEALAND DAIRY BOARD, WELLINGTON, NEW ZEALAND
关键词
D O I
10.1080/00480169.1993.35729
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
A comparative cervical skin test using 1.0 mg/ml bovine purified protein derivative and 0.5 mg/ml avian purified protein derivative was evaluated as a method for detecting tuberculosis in farmed deer. A positive comparative cervical skin test reaction was defined as a bovine response with a 2 mm or greater increase in skin thickness which was greater or equal to the avian response. Estimates of the sensitivity of the comparative cervical skin test were obtained from a series of experiments conducted on 60 deer intratracheally inoculated with Mycobacterium bovis. Prior tuberculin skin testing was found to suppress the skin reactivity to a subsequent comparative cervical skin test. This effect was most pronounced at short intervals of 3-7 days, but could still be measured 60 days after the previous test. When the test interval was greater than 60 days, the sensitivity of the comparative cervical skin test was 91.4%. The specificity of the comparative cervical skin test was 98.7% when 1157 deer from 17 uninfected herds with a history of nonspecific skin test reactions were examined. There was no statistical difference in the mean skin thickness increases of three groups of infected animals tested with 2 mg/ml, 0.2 mg/ml and 0.02 mg/ml of bovine purified protein derivative respectively.
引用
收藏
页码:12 / 20
页数:9
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