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[A case of Echinococcus granulosus hydatid cyst in a zoo born dromedary in the Berlin-Fridrichsfelde zoo].

In Germany, the threat to human health by the small fox tapeworm (Echinococcus multilocularis) has been increasingly discussed in the last few years. On the other hand, the hydatid worm of the dog (Echinococcus granulosus) became more and more rare in Germany and was often declared to be eradicated. This paper presents a case of hydatid infection of the lung in an adult dromedary (Camelus dromedarius), which was born and kept all its life at Tierpark Berlin-Friedrichsfelde. Questions connected with E. granulosus infection are discussed from an ecological point of view: history, urbanisation, biology, clinical signs, potential threat to man, prophylaxis and treatment. In view of the extensive and sometimes uncontrolled dog keeping in urban households it must be stressed that careful documentation and surveillance of this life-threatening zoonosis, which was the main reason for its decline in the past, has not yet lost its importance.