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Updated: May 20, 2026

Cercarial Transformation and in vitro Cultivation of Schistosoma mansoni Schistosomules
Published on: August 16, 2011
[Nosoareas of clonorchiasis in the Primorye Territory]
Abstract:
The mammalian liver parasite (Clonorchis sinensis flukes) has spread in the Primorye Territory. The areas of the first intermediate hosts for the parasite mollusks of the genus Parafossarulus have been found to recently become wider south-western predominantly due to lotus acclimatization, resulting in the expansion of a parasite habitation area. The intensity of newly formed foci of clonorchiasis is an order of magnitude greater than that of natural ones and they are a higher hazard since they have formed in the recreation areas used by the population for rest and fishing. The carp is the second intermediate host of trematodes. Patients' medical history data show that European and crucian carps (less frequently skygazer, rudd, gudgeon, minnow) have served as the main sources of human infection with trematodes.
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