Isolation of Brucella abortus from experimentally infected dromedary camels in Sudan: a preliminary report.

Six camels were experimentally infected with two strains of Brucella abortus, four with S19 and two with a field bovine strain. In all cases antibody titres were detected within 6 to 11 days. Serum agglutination titres peaked between days 11 and 32 and complement fixation titres between days 11 and 52; both titres then declined steadily. No clinical signs were observed in the four camels inoculated with S19. Slight non-specific symptoms were seen in the two camels infected with the field bovine strain. On post mortem examination no gross lesions were observed although histopathological sections showed focal granulomata in the liver and a generalized lymphadenitis. The organism was recovered mainly from the lymph nodes of the head and genital tract.