title: Prevalence of hydatidosis in slaughtered animals in Iran.
abstract: OBJECTIVE
  Hydatid cyst or cystic echincoccosis (CE) is an important medical and veterinary problem in the world, especially in Iran. Domestic intermediate hosts are a major reservoir for the disease in humans. The aim of this study was to determine the prevalence of hydatid cysts in slaughtered animals in Isfahan, central part of Iran.
  
  
  METHODS
  In this cross-sectional study performed from 10 May 2009 to 10 May 2010, a total of 196,325 animals (89,651 sheep, 93,050 goats, 9,112 cattle and 4,512 calves) were inspected macroscopically for hydatid cysts.
  
  
  RESULTS
  Prevalence rate of CE in sheep, goats, cattle and calf was 16.4%, 3.1%, 6.5% and 8.2%, respectively. In all cases, the prevalence in female cattle and sheep was more than in males (P < 0.001). There are significant seasonal pattern for hydatidosis only in sheep (P < 0.001) and the highest prevalence of cysts was seen in autumn and winter seasons. The fertility of cysts in the liver of sheep (77%) was higher than in lungs (47.9%), but was higher in lungs in cattle (44%). Most condemnation cases were seen in lung of sheep (27.1%).
  
  
  CONCLUSIONS
  It appears that sheep are the most important intermediate hosts for E. granolusus in this area.
authors: School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
authors: Mehdi
authors: M
authors: Azami
authors: Mojtaba
authors: M
authors: Anvarinejad
authors: Behrouz
authors: B
authors: Ezatpour
authors: Masoud
authors: M
authors: Alirezaei
mesh_terms: D000003:Abattoirs; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology* / Q000469:parasitology; D003430:Cross-Sectional Studies; D004443:Echinococcosis / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary*; D004444:Echinococcosis, Hepatic / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary; D004445:Echinococcosis, Pulmonary / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary; D004446:Echinococcus / Q000302:isolation & purification; D005260:Female; D005298:Fertility; D015511:Goat Diseases / Q000453:epidemiology* / Q000469:parasitology; D006041:Goats / Q000469:parasitology; D006801:Humans; D007492:Iran / Q000453:epidemiology; D008099:Liver / Q000469:parasitology; D008168:Lung / Q000469:parasitology; D008297:Male; D015995:Prevalence; D012621:Seasons; D012756:Sheep / Q000469:parasitology; D012757:Sheep Diseases / Q000453:epidemiology* / Q000469:parasitology