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Reservoir competence of native North American birds for the Lyme disease spirochete, Borrelia burgdorferi

Journal of Medical Entomology

http://ariel.esa.catchword.org/vl=3859706/cl=48/nw=1/rpsv/cw/esa/00222585/v42n3/s34/p445 click on Free PDF 6334_Ginsberg.pdf
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Abstract

Reservoir competence of the Lyme disease spirochete, Borrelia burgdorferi, was tested for six species of native North American birds: American Robin, Gray Catbird, Brown Thrasher, Eastern Towhee, Song Sparrow, and Northern Cardinal. Wild birds collected by mistnetting on Fire Island, NY, were held in a field lab in cages over water, and locally collected larval ticks were placed on the birds, harvested from the water after engorgement, and tested for infection by DFA after molting to the nymphal stage. American Robins were competent reservoirs, infecting 16.1% of larvae applied to wild-caught birds, compared to 0% of control ticks placed on uninfected lab mice. Robins that were previously infected in the lab by nymphal feeding infected 81.8% of applied larvae. Wild-caught Song Sparrows infected 4.8% of applied larvae, and 21.1% when infected by nymphal feeding. Results suggest moderate levels of reservoir competence for Northern Cardinals, lower levels for Gray Catbirds, and little evidence of reservoir competence for Eastern Towhees or Brown Thrashers. Lower infection rates in larvae applied to wild-caught birds compared to birds infected in the lab suggest that infected birds display temporal variability in infectiousness to larval ticks. Engorged larvae drop from birds abundantly during daylight hours, so the abundance of these bird species in the peridomestic environment suggests that they might contribute infected ticks to lawns and gardens.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Reservoir competence of native North American birds for the Lyme disease spirochete, Borrelia burgdorferi
Series title:
Journal of Medical Entomology
Volume
42
Issue:
3
Year Published:
2005
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
445-449
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
445
Last page:
449
Number of Pages:
5