S.A. Hussain, H. Rahman, D. Pal and N.N. Barman . (2003). Evaluation of Serologic and Delayed Hypersensitivity Test for Detection of Bovine Brucellosis. Journal of Veterinary Public Health, Vol. 01 Issue 2 Page No: 165–167
Evaluation of Serologic and Delayed Hypersensitivity Test for Detection of Bovine Brucellosis
S.A. Hussain, H. Rahman, D. Pal and N.N. Barman
Page No. : 165–167
ABSTRACT
This report evaluates the comparative efficacy of standard tube agglutination test (STAT) and DHT for identification of Brucella-infected cattle. Both tests yielded consistent results for the detection of brucellosis in 20 animals; 7 were positive and 13 were negative by both tests. Of the remaining 14 animals, 12 animals that were negative in DHT reacted positively in STAT, and two animals that were negative in SAT reacted positively in DHT. In comparison to STAT, DHT was found to be less sensitive for the detection of Brucella-infected animals. The relative sensitivity, specificity and predictive values of positive and negative test results obtained by DHT were found as 36.84%, 86.67%, 77.78% and 52.00%, respectively, in respect of STAT. Apparently, though DHT detected a very low percentage of positive cases, this test is found to be useful when a large number of animals are to be tested at a time on the farm premises.
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