[The situation regarding parasitic diseases in the USSR].
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Biomedical subjects
Publications and source records attributed to A A Frolova.
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Experiments were made to infect young Ophiocephalus argus, the fish of prey delivered from eastern Asia in the Amu-Dar'ya River basin, outside the area of the broad tapeworm Diphyllobothrium latum. The dalags were infected mainly by ingesting the local copepods Arctodiaptomus salinus, the experimentally invaded larvae of the broad tapeworm. The latter larvae were obtained from the development of eggs of the helminth isolated from strobilae from the patients treated in Perm Province. D. latum plerocercoids lived in the dalags nearly 3 weeks, then they died and lysed. Thus, the dalag cannot be a supplementary host of D. latum.
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The data on fish infection with Diphyllobothrium and Opisthorchis larvae in the lower Ob were specified. There is a tendency to decrease fish infection with Diphyllobothrium plerocercoids and preserve infection with Opisthorchis metacercariae.
Paper presents the data on the morbidity pattern of parasitic diseases in the USSR as well as on the trends in ascariasis, trichocephaliasis and hymenolepiasis infection rates. Problems of improving the prophylactic and antiepidemic measures are discussed with regard both to practical parasitology and investigations.
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