Atlas of livestock parasites
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Hydatid cysts (camel)



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Hydatidosis is a cyclozoonotic disease, widespread in the Sudan. The metacestode of Echinococcus granulosus, hydatid cyst, was found in various tissues and organs.However, the predilection sites in camel are the lungs and liver.

Fertile cysts were found mainly in the lung as a primary site, with high fertility rate that ranged from 67.4% to 83.7% compared to the liver in which it was less common and mostly sterile. Among ruminants,camels host the highest prevalence of hydatid cyst infection followed by sheep, cattle and goats. It was reported 43.9% prevalence for camel hydatidosis at Omdurman Slaughterhouse.

This prevalence is not much different from those reported on a field survey in Central, Eastern and Western parts of Sudan (35.3% - 48.7%). In Kordofan State camel hydatidosis was also investigated. The number examined was, however, too small to reflect the exact situation and was reported a prevalence of 67.7%.

Hydatidosis in man was reported in the Southern States, Khartoum and Central States. In the Sudan a prevalence of 53% for E. granulosus in dogs surveyed in Khartoum area.

Camel plays a major role in the epizootiology of the disease in the Eastern, Western and Northern States,where it is the main domestic animal that lives in close contact with dogs and the study of the disease and  indicated that hydatidosis cycle in the Sudan is “Camel-dog-camel”.

Diagnosis of hydatidosis is usually established at post mortem. Serodiagnosis by Indirect Haemagglutination Test (IHA) and Immunoelectrophoresis (IEP), was attempted (Saad and Hassan,1989). IHA was found to be unreliable because it was non-specific, while IEP was highly specific but its sensitivity required some improvement.



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