Objective: To study the relative frequency of brucellosis among domestic animals in Kassala State, Sudan, in the year 1999 and compare the results of previous studies since 1908. Also to study the frequency rates of the disease in animal contacts in the area.
Methods: Sero-survey for Brucella melitensis and Brucella abortus was carried out on sera of animals brought for slaughter to Kassala abattoir and on sera of occupational contacts of animals.