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Effects of gamma irradiation on the infectivity and development ofHymenolepis nana oncospheres (Cestoda: Cyclophyllidea)

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Summary

Hymenolepis nana eggs received gamma irradiation at levels from 10 000r to 200 000r before administration to mice orally or by subcutaneous inoculation. Little growth beyond the oncosphere occurred after 50 000r or over, but invasiveness was not abolished even after treatment at 200 000r. A full range of developmental stages occurred after 10 000–20 000r but relatively few worms became gravid in the intestine. Growth occurred after treatment at 30 000–40 000r, but very few reached the fully developed cysticercoid stage.

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Author notes

  1. J. A. Onyango-Abuje

    Present address: East African Veterinary Research Organization, Muguga, P. O. Box 32, Kikuyu, Kenya

Authors and Affiliations

  1. Division of Entomology and Parasitology, University of California, 94 720, Berkeley, Cal., U.S.A.

    J. A. Onyango-Abuje & C. J. Weinmann

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  1. J. A. Onyango-Abuje
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  2. C. J. Weinmann
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Onyango-Abuje, J.A., Weinmann, C.J. Effects of gamma irradiation on the infectivity and development ofHymenolepis nana oncospheres (Cestoda: Cyclophyllidea). Z. F. Parasitenkunde 44, 111–116 (1974). https://doi.org/10.1007/BF02433463

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  • DOI: https://doi.org/10.1007/BF02433463

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