Hydatidosis of slaughtered sheep in Baghdad City; bacteriological study of infected hydatid cyst fluid


Background: Hydatid cyst is an infection caused by cestode species ofEchinococcus granulosus and often localized in viscera of animals andhumans. Hydatid cyst is typically filled with a clear fluid (hydatid fluid)that is sterile bacteriologically. Bacterial infection of hydatid fluid issometimes present, but not always and this leads to sterilizing the cystand prevents producing protoscolicies.Aims: The present work aims to study the prevalence of hydatidosis insheep slaughtered in Al-Shuala and Al-Karkh abattoirs in Baghdad cityand isolation of the possible bacteria that infect hydatid fluid of hydatidcyst.Materials and Methods: A 6-months period observation of two slaughterslabs of sheep (condemned livers), inspection was done in the sameslaughter slabs to assess the hydatid cyst and application ofbacteriological examination with culture on the present hydatid cystfluid.Results: The study showed that the prevalence of hydatidosis was 124(9.9%) of 1258 examined livers. Of the 124 hydatid livers, 32 (25.8%) werefertile and the rest were sterile and calcified. A bacteriological study offertile hydatid cysts has be done under sterile conditions to isolation ofbacteria , of the thirty two fertile cyst cultured in this study, 18 (56.3%)were infected with different types of bacterial isolates includingEscherichia coli (38.9%), Klebsiella spp. (27.8%), Staphylococcus spp.(25.0%), Proteus spp. (11.1%) & Pseudomonas spp. (8.2%).Conclusions: the prevalence of hydatidosis in addition to bacterialinfection in liver isolated from sheep seriously affects the keeping qualityof liver as an important food production and important to the health ofthe consumers.