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Question
Human infection of blood fluke occurs through
Human infection of blood fluke occurs through
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Solution
The correct option is C Cercaria
Schistosomes have a complex life cycle in which cercariae free-living in fresh water can penetrate the healthy human skin. The head of the cercaria transforms into an endoparasitic larva, the schistomule. The schistomules pass several days in the skin then enter the venous circulation and eventually migrate to the lungs. They then travel through the circulatory system to the hepatoportal circulation where they mature into adult worms and mate. So, option D is correct.
Schistosomes have a complex life cycle in which cercariae free-living in fresh water can penetrate the healthy human skin. The head of the cercaria transforms into an endoparasitic larva, the schistomule. The schistomules pass several days in the skin then enter the venous circulation and eventually migrate to the lungs. They then travel through the circulatory system to the hepatoportal circulation where they mature into adult worms and mate. So, option D is correct.
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