Abstract
Brucellosis is a zoonotic disease, endemic in Iraq, and transmitted through dairy products. Several serological tests have already been used for Brucella infection diagnosis. Sera from a total 182 suspected patients having brucellosis attended Azadi General Hospital during the period between June – September 2009 had been screened by different serological tests, Rose Bengal agglutination test, B.abortus antigen agglutination test, B.melitensis antigen agglutination test as well as ELISA IgM, IgG have been used in this investigation to determine the type of infection and to evaluate the best serologic tests . By comparing the results obtained from these serologic tests and by using statistical methods (PPV, NPV and F-measure) it was found that the Rose Bengal test is most useful and more sensitive than other two tests B.abortus antigen test and B.melitensis antigen test. There have been no significant differences between the rate of acute and chronic infection. The result also suggested that the male and female have the same susceptibility for infection with Brucella.