Brucellosis in camels (Camelus dromedarius) in Darfur, Western Sudan

In a field outbreak of brucellosis in 21 camels mixed with cattle, sheep and goats, five camels, three of which showed clinical signs, were serologically positive. In a subsequent abattoir survey of apparently healthy camels, six animals were seropositive, albeit with titres that tended to be lower than those found in the field outbreak. Of the six seropositive slaughtered camels, five were shown to have lymph nodes (prescapular and supramammary) infected with brucellae (Brucella melitensis biovar 3, two camels; Brucella abortus biovar 6, three camels). Infection of camels with B. abortus biovar 6 had not previously been reported. Infection of the supramammary lymph nodes presents a potential hazard to those who consume raw camels' milk, a common practice in nomadic camel owners.