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Prevalence of Rickettsia Species in Canadian Populations of Dermacentor andersoni and D. variabilis▿

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


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

Topics: Public Health Microbiology
Publisher: American Society for Microbiology (ASM)
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Provided by: PubMed Central
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