Brucella antibod titres base line In the healthy individuals In Haweja city

152 sera were collected from healthy individuals residing Al-Haweja City were tested for antibody titers for Brucella antigens by slide agglutination test(SAT) which detect 102 (67.1%)cases of antibody titer ranging from 1:20 to l:320.The SAT negative sera(50 sera) were furtherly subjected to Coombs test which detect 22(14.4%)cases as chronic carriers. Therefor this study revealed , the high exposuer to the brucella antigens in A1 haweja city and regarding antibody titer of 1:160 against Brucella antigens as the base line for diagnosis of brucellosis in Al- Haweja population.