Abstract
Extract
Clapp Citation(1955) showed the complement fixation test (C.F.T.) for Brucella ovis in sheep to be well correlated to bacteriological findings in cases where lesions were minimal or absent. His observations were confirmed by Biberstein and McGowan Citation(1958) who found the agglutination test to be less reliable than the C.F.T. in this respect, and stressed the useful-ness of the C.F.T. in the detection of asymptomatic shedders of the organism and animals in the incubation stages of the disease. They also pointed out that the detection of such slightly infected individuals would be the one indispensable condition of any successful eradication programme.