IDEAS home Printed from https://ideas.repec.org/a/taf/mpopst/v13y2006i3p135-152.html
   My bibliography  Save this article

Vector Consumption and Contact Process Saturation in Sylvatic Transmission of T. cruzi

Author

Listed:
  • Christopher Kribs-Zaleta

Abstract

Recent research in the transmission of the protozoan parasite Trypanosoma cruzi, some strains of which cause Chagas' disease, suggests that consumption of vectors by sylvatic hosts such as raccoons may play a role in maintaining the transmission cycle in the wild. As both hosts and vectors have been observed to invade new ecological niches, it is important to consider the effect vector consumption may have on vector density. For this reason a per individual contact rate is employed which rises roughly linearly for low vector densities and saturates for high densities. The model under study thus superimposes a predator-prey structure on a host-vector infection cycle (with first one, and then multiple, hosts). Outbreak behavior follows classical threshold behavior through the reproductive number R0, which allows evaluation of the importance of this transmission avenue relative to the traditional route. For sufficiently sharp contact rate saturation, two locally stable vector densities may exist.

Suggested Citation

  • Christopher Kribs-Zaleta, 2006. "Vector Consumption and Contact Process Saturation in Sylvatic Transmission of T. cruzi," Mathematical Population Studies, Taylor & Francis Journals, vol. 13(3), pages 135-152.
  • Handle: RePEc:taf:mpopst:v:13:y:2006:i:3:p:135-152
    DOI: 10.1080/08898480600788576
    as

    Download full text from publisher

    File URL: http://www.tandfonline.com/doi/abs/10.1080/08898480600788576
    Download Restriction: Access to full text is restricted to subscribers.

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:taf:mpopst:v:13:y:2006:i:3:p:135-152. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Chris Longhurst). General contact details of provider: http://www.tandfonline.com/GMPS20 .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.