Detection of a Borrelia miyamotoi Sensu Lato Relapsing-Fever Group Spirochete from Ixodes pacificus in California

Jeomhee Mun; Rebecca J. Eisen; Lars Eisen; Robert S. Lane

doi:10.1603/0022-2585(2006)043[0120:DOABMS]2.0.CO;2

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1 January 2006 Detection of a Borrelia miyamotoi Sensu Lato Relapsing-Fever Group Spirochete from Ixodes pacificus in California

Jeomhee Mun, Rebecca J. Eisen, Lars Eisen, Robert S. Lane

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J. of Medical Entomology, 43(1):120-123 (2006). https://doi.org/10.1603/0022-2585(2006)043[0120:DOABMS]2.0.CO;2

Abstract

We investigated whether host-seeking nymphs and adults of the western blacklegged tick, Ixodes pacificus Cooley & Kohls, the primary vector of Lyme disease spirochetes in far-western North America, are infected naturally with relapsing-fever group spirochetes in Mendocino County, California. Relapsing-fever group borreliae were detected in four (1.7%) of 234 nymphal and two (0.7%) of 282 adult host-seeking I. pacificus ticks by polymerase chain reaction and sequence analysis of the 16S rRNA and flagellin genes, respectively, exhibiting 99 and 98.5% sequence homology to Borrelia miyamotoi Fukunaga. Phylogenetic analysis based on these two genes revealed that the borreliae detected in these ticks belong to the relapsing-fever group and that these are closely related to, if not identical with, B. miyamotoi.

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Jeomhee Mun, Rebecca J. Eisen, Lars Eisen, and Robert S. Lane "Detection of a Borrelia miyamotoi Sensu Lato Relapsing-Fever Group Spirochete from Ixodes pacificus in California," Journal of Medical Entomology 43(1), 120-123, (1 January 2006). https://doi.org/10.1603/0022-2585(2006)043[0120:DOABMS]2.0.CO;2

Received: 22 August 2005; Accepted: 1 October 2005; Published: 1 January 2006

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