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Cyclozoonosis

a zoonosis that requires more than one vertebrate host (but no invertebrate) for completion of the life cycle; e.g., various taenioid cestodes such as Taenia saginata and t. Solium in which humans are an obligatory host; hydatid disease, a cyclozoonosis in which man is not an obligatory host.

Origin: cyclo-_ g. Zoon, animal, _ nosos, disease