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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Intermediate host for hydatid disease-
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The correct answer is  Hydatid disease is caused by Echinococcus granulosus. The worm completes its life cycle in two hosts - Definitive Host : Dog Intermediate Host : Sheep & Cattle. Man acts as an accidental intermediate host (Dead end). The larval stage of parasite is passed in intermediate hosts including man, giving rise to hydatid cyst.