Tuberculin test errors and its effect on detection of bovine tuberculosis

Bovine tuberculosis is an endemic disease in Egypt, a notable gap exists between limited cases identified by single intradermal tuberculin test performed through the national control program and higher detected at abattoirs. Therefore, this study aimed to investigate epidemiological situation causes of previously mentioned Middle-Delta Region. A total 25 emergency-slaughtered animals unknown tuberculosis-status were investigated cocktail-antigens ELISA post-mortem examination. Five visible tuberculous-lesion confirmed PCR, was sensitive predictive existence tuberculous-lesions; 4(80%) out 5 visible-lesion seropositive. True prevalence among slaughtered 27%. In addition, tuberculin-testing 400 during evaluated, many technical procedural errors detected, all negative.Out them, 55 tested before application test, 30 (54.5%) To confirm effect reported on reliability reference serum 20 tuberculosis-positive that standard-procedures their status PCR after slaughtering, ELISA. complete matching evident, standard-tuberculin positive conclusion, bovine high levels area, may be cause for missing not itself finally, further wide-scale funded required discover throughout Egypt.