PMID: 16506443Mar 2, 2006Paper

Distribution, seasonality, and hosts of the Rocky Mountain wood tick in the United States

Journal of Medical Entomology
Angela M JamesJack L Schlater

Abstract

Anaplasma marginale Theiler is a tick-borne pathogen that causes anaplasmosis in cattle. There are approximately 20 tick species worldwide that are implicated as vectors of this pathogen. In the United States, Dermacentor andersoni Stiles and Dermacentor variabilis (Say) are the principal vectors. The risk of transmission of anaplasmosis to cattle has been largely based on the distribution of D. andersoni in the United States. We developed a centralized geographic database that incorporates collection records for D. andersoni from two large national databases. We reviewed the geographic records in each database and postings from MEDLINE and AGRICOLA to produce a national county-level distribution map based on a total of 5,898 records. The records spanned the period from 1903 through 2001 with the majority between 1921 to 1940. Populations of D. andersoni were recorded from 267 counties in 14 states and were distinguished as either established or reported. We found 180 counties with established populations of D. andersoni and 87 counties with reported occurrences in 14 states with the majority of established populations reported from Montana, Idaho, and Oregon. D. andersoni populations in the United States currently extend from ...Continue Reading

References

Jun 16, 1992·Annals of the New York Academy of Sciences·K M Kocan
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Oct 1, 1994·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·I S EriksG H Palmer
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Nov 1, 1960·The Journal of Infectious Diseases·W BURGDORFER, C M EKLUND

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Citations

Nov 3, 2010·Transboundary and Emerging Diseases·P Aubry, D W Geale
Apr 13, 2012·Journal of Medical Entomology·K RochonT J Lysyk

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