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1 July 2011 Avian Hosts of Ixodes pacificus (Acari: Ixodidae) and the Detection of Borrelia burgdorferi in Larvae Feeding on the Oregon Junco
S. A. Wright, J. R. Tucker, A. M. Donohue, M. B. Castro, K. L. Kelley, M. G. Novak, P. A. Macedo
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Abstract

Larval and nymphal western blacklegged tick, Ixodes pacifiais Cooley & Kohls (Acari: Ixodidae), were collected from birds, rodents, and lizards at Quail Ridge Reserve located in Napa County in northwestern California. Species from three vertebrate classes were sampled simultaneously from two transects during two consecutive spring seasons. Feeding larval and nymphal ticks were removed and preserved for counting, examination and testing for the presence of Borrelia burgdorferi Johnson, Schmid, Hyde, Steigerwalt & Brenner. Mean infestations with I. pacificus subadults on lizards were 10.0, on birds 2.9, and on rodents 1.3. I. pacificus larvae (204) collected from 10 avian species and (215) collected from two rodent species were tested for the presence of B. burgdorferi s.s. via real-time polymerase chain reaction. Three B. burgdorferi-infected larvae were taken from two Junco hyemalis and two infected larvae from one Neotoma fuscipes Baird. This is the first reported detection of B. burgdorferi in larvae feeding on a bird in western North America.

© 2011 Entomological Society of America
S. A. Wright, J. R. Tucker, A. M. Donohue, M. B. Castro, K. L. Kelley, M. G. Novak, and P. A. Macedo "Avian Hosts of Ixodes pacificus (Acari: Ixodidae) and the Detection of Borrelia burgdorferi in Larvae Feeding on the Oregon Junco," Journal of Medical Entomology 48(4), 852-859, (1 July 2011). https://doi.org/10.1603/ME11001
Received: 3 January 2011; Accepted: 1 May 2011; Published: 1 July 2011
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KEYWORDS
birds
Borrelia burgdorferi
Ixodes pacificus
Lizards
rodents
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