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The Relative Contributions of Transovarial and Transstadial Transmission to the Maintenance of Tick-Borne Diseases

  • Sarah E. Randolph
Part of the NATO ASI Series book series (NSSA, volume 260)

Abstract

It is a common misconception that, because of the frequently observed low coefficient of transovarial transmission of many tick-borne diseases, this transmission route contributes very little to the maintenance of the diseases (inter alia Porco, 1991). A simple model, that includes the important epidemiological parameters of tick reproduction and mortality rates, shows that the potential contribution of transovarial transmission is greater than that of transstadial transmission, even when. the transmission coefficient of the former is less than 10% of that of the latter. The actual contribution will depend on the specific vector/host relationships for each tick-borne disease, and the susceptibility to the disease of the host species for each tick stage. The example presented here concerns the maintenance of Lyme disease in wild vertebrate populations.

Keywords

Transmission Coefficient Lyme Disease Borrelia Burgdorferi Transmission Route Basic Reproductive Number 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Anderson, R.M. & May, R.M., 1991, “Infectious Diseases of Humans”, Oxford University Press.Google Scholar
  2. Magnarelli, I.A., Anderson, J.F., & Fish, D., 1987, Transovarial transmission of Borrelia burgdorferi in Ixodes dammini (Acari: Ixodidae), J. Infect. Dis. 156: 234.PubMedCrossRefGoogle Scholar
  3. Piesman, J, Donahue, T.N., Mather, T.N. & Spielman, A., 1986, Transovarially acquired Lyme disease spirochaetes (Borrelia burgdorferi) in field-collected larval Ixodes dammini (Acari: Ixodidae), J. med. Ent. 23: 219.Google Scholar
  4. Porco, T.C., 1991, A model of the enzootiology of Lyme disease in the Atlantic northeast of the United States. Natural Resiources Modelling 5: 469.Google Scholar
  5. Randolph, S.E. & Steele, G.M., 1985, An experimental evaluation of conventional control measures against the sheep tick, Ixodes ricinus (L.) (Acari: Ixodidae). II. The dynamics of the tick-host interaction, Bull. ent. Res. 75: 501.CrossRefGoogle Scholar
  6. Steele, G.M. & Randolph, S.E., 1985, An experimental evaluation of conventional control measures against the sheep tick, Ixodes ricinus (L.) (Acari: Ixodidae). I. A unimodal seasonal activity pattern, Bull. ent. Res. 75: 489.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • Sarah E. Randolph
    • 1
  1. 1.Department of ZoologyUniversity of OxfordOxfordUK

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