Detection of Antibodies against Bovine Brucellosis in ElHawata area, ElGadarif State, Sudan The main objective of this research was to study bovine brucellosis in ElHawata area, ElGadarif State (2007). A total of 121 bovine sera were collected randomly from cattle of different age and breeds. Data regarding the history of the disease (frequent abortion) in the area were recorded. Samples were 1st subjected to serological investigation using Rose Bengal Plate Test (RBPT). Nineteen samples (15.7%) were found positive for antibodies against Brucellosis. The result was confirmed with (competitive ELISA) c-ELISA. The result of both tests was almost identical with one exception (one additional sample was found positive with c-ELISA). Only positive samples were tested with Serum Agglutination Test (SAT). The result confirmed that of c-ELISA and revealed antibody titer ranged between 17-1280. Regardless of age, the disease was detected in all groups, and it was more prevalent in cross bre...