title: Prevalence of Rickettsia species in Canadian populations of Dermacentor andersoni and D. variabilis.
abstract: 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.
authors.affiliation: Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, Saskatchewan, Canada S7N 5E2. shaun.dergousoff@usask.ca
authors.forename: Shaun J
authors.initials: SJ
authors.lastname: Dergousoff
authors.forename: Andrew J A
authors.initials: AJ
authors.lastname: Gajadhar
authors.forename: Neil B
authors.initials: NB
authors.lastname: Chilton
mesh_terms: D000818:Animals; D001426:Bacterial Proteins / Q000235:genetics; D002170:Canada / Q000453:epidemiology; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D003870:Dermacentor / Q000382:microbiology*; D008969:Molecular Sequence Data; D015995:Prevalence; D012281:Rickettsia / Q000145:classification* / Q000302:isolation & purification*; D012282:Rickettsia Infections / Q000453:epidemiology / Q000382:microbiology / Q000662:veterinary*; D017422:Sequence Analysis, DNA
chemical_list: D001426:Bacterial Proteins; D004269:DNA, Bacterial