IDEAS home Printed from
MyIDEAS: Log in (now much improved!) to save this article

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

Listed author(s):
  • Christopher Kribs-Zaleta
Registered author(s):

    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.

    If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

    File URL:
    Download Restriction: Access to full text is restricted to subscribers.

    As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.

    Article provided by Taylor & Francis Journals in its journal Mathematical Population Studies.

    Volume (Year): 13 (2006)
    Issue (Month): 3 ()
    Pages: 135-152

    in new window

    Handle: RePEc:taf:mpopst:v:13:y:2006:i:3:p:135-152
    DOI: 10.1080/08898480600788576
    Contact details of provider: Web page:

    Order Information: Web:

    No references listed on IDEAS
    You can help add them by filling out this form.

    This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

    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)

    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.

    If references are entirely missing, you can add them using this form.

    If the full references list an item that is present in RePEc, but the system did not link to it, you can help with 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 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.

    This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.