Abstract
Progressive expansion of the most hazardous human parasitoses caused by trematodes, cestodes and nematodes has been found on the south of the Russian Far East. Decelerating expansion of the trematode Clonorchis sinensis, an agent of clonorchiasis towards the southern Primorye Territory from the Amur River basin, that began 10–15 years ago, was revealed. A prognosis was made on the activation of the natural foci of clonorchiasis and paragonimiasis. Circulation possibilities are discussed of the highly pathogenic trematode Pagonimus heterotremusar in the South Asian regional ecosystems. Our experiments showed that the freshwater gastropods of the Parajuga genus from the Amur River basin and those of Stenothyra genus from Primorsky Territory were resistant to this trematode infection. Nevertheless, this does not exclude the possibility of this parasite penetration into the Far East region via infection of the local gastropods of other genera.
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The study was supported by the integrated program “Far East” for the basic researches of the Far Eastern branch of RAS, subprogram 4 “Molecular-genetic technologies of the rational use of marine and terrestrial biological resources of the Far East region,” grant no. 18-4-039.
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The authors declare that they have no conflict of interest. This article does not contain any studies involving animals or human participants performed by any of the authors.
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Translated by A. Nikolaeva
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Bogatov, V.V., Besprozvannykh, V.V. & Prozorova, L.A. Harmful Parasitoses on the Russian Southern Far East under Climatic and Demographic Changes. Dokl Biol Sci 487, 108–111 (2019). https://doi.org/10.1134/S0012496619040033
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DOI: https://doi.org/10.1134/S0012496619040033