Parasite Transmission

  • Leslie H. Chappell
Part of the Tertiary Level Biology book series (TLB)


To the student of parasitology, the life cycles of parasites can often present a bewildering array of detail, with no obvious pattern appearing at first glance. Nevertheless there are certain events that are common in the life-cycles of all parasites, one of which is transmission to the next host. Transmission may occur more than once during a single life-cycle, should the parasite develop in one or more intermediate hosts. The adult or mature parasite completes its development and reproduces in the final, or definitive host, releasing eggs, larvae or other infective stages that must be transmitted to another host, whether it be of the same species (as in a direct life-cycle) or to hosts that are of different species (if the life-cycle is indirect).


Intermediate Host Adult Worm Definitive Host Host Location Schistosoma Mansoni 
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Further Reading

  1. Cable, R. M. (1972) “Behaviour of digenetic trematodes”. in Behavioural Aspects of Parasite Transmission, Linnean Society, editors E. U. Canning & C. A. Wright, Academic Press, 1–18.Google Scholar
  2. Cheng, T. C. (1967) “Marine molluscs as hosts for symbioses”, in Advances in Marine Biology,5, editor F. S. Russell, 16–134.Google Scholar
  3. Hawking, F. (1975) “Circadian and other rhythms of parasites.” Advances in Parasitology, 13, 123–182.CrossRefGoogle Scholar
  4. Kearn, G. C. (1970) “The physiology and behaviour of the monogenean skin parasite Entobdella soleae in relation to its host (Solea solea)”, in Ecology and Physiology of Parasites, editor A. M. Fallis, Adam Hilger Ltd., 161–187.Google Scholar
  5. Lee, D. L. and Atkinson, H. J. (1976) Physiology of Nematodes,2nd edition, Macmillan Press.Google Scholar
  6. Llewellyn, J. (1972) “Behaviour of monogeneans”, in Behavioural Aspects of Parasite Transmission, Linnean Society, editors E. U. Canning and C. A. Wright, Academic Press, 19–30.Google Scholar
  7. Matthews, B. E. (1977) “The passage of larval helminths through tissue barriers”, in Parasite Invasion, Symposia of the British Society for Parasitology, 15, editors A. E. R. Taylor and R. Muller, 93–120.Google Scholar
  8. Maclnnis, A. J. (1965) “Responses of Schistosoma mansoni miracidia to chemical attractants” Journal of Parasitology, 51, 731–746.CrossRefGoogle Scholar
  9. Read, C. P. (1970) Parasitism and Symbiology, Ronald Press.Google Scholar
  10. Smyth, J. D. (1966) The Physiology of Trematodes, Oliver and Boyd.Google Scholar
  11. Stirewalt, M. A. (1966) “Skin penetration mechanisms in helminths”, in Biology of Parasites, editor E. J. L. Soulsby, Academic Press, 41–60.Google Scholar
  12. Ulmer, M. J. (1970) “Site finding behaviour in helminths in intermediate and definitive hosts”, in Ecology and Physiology of Parasites,editor A. M. Fallis, Adam Hilger Ltd., 121–160.Google Scholar

Copyright information

© L. H. Chappell 1979

Authors and Affiliations

  • Leslie H. Chappell
    • 1
  1. 1.University of AberdeenUK

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