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Applied and Environmental Microbiology, March 2009, p. 1786-1789, Vol. 75, No. 6
0099-2240/09/$08.00+0     doi:10.1128/AEM.02554-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

Prevalence of Rickettsia Species in Canadian Populations of Dermacentor andersoni and D. variabilis{triangledown}

Shaun J. Dergousoff,* Andrew J. A. Gajadhar, and Neil B. Chilton

Department of Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada

Received 9 November 2008/ Accepted 8 January 2009

We determined the prevalence of rickettsiae in Dermacentor adults at 15 localities in Canada. Rickettsia rickettsii was not detected in any tick, whereas Rickettsia peacockii was present in 76% of Dermacentor andersoni adults and Rickettsia montanensis in 8% of Dermacentor variabilis adults. This host specificity was maintained in localities where both tick species occurred in sympatry.

* Corresponding author. Mailing address: Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, Saskatchewan, Canada S7N 5E2. Phone: (306) 966-4407. Fax: (306) 966-4461. E-mail: shaun.dergousoff{at}usask.ca

{triangledown} Published ahead of print on 16 January 2009.

Applied and Environmental Microbiology, March 2009, p. 1786-1789, Vol. 75, No. 6
0099-2240/09/$08.00+0     doi:10.1128/AEM.02554-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.





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