title: Range expansion of the tick Amblyomma triguttatum triguttatum, an australian vector of Q fever.
abstract: The tick Amblyomma triguttatum triguttatum has previously been reported from Western Australia, Queensland and New South Wales. A viable population of this species, including all developmental stages, has now been discovered on the southern end of Yorke Peninsula, South Australia. Species determination was carried out morphologically and using 18S and 16S rRNA. The data for 16S rRNA are the first published for this species. Amblyomma t. triguttatum is significant through its involvement in the natural, Australian cycle of Coxiella burnetti, the pathogen causing Q fever. The environment of Yorke Peninsula contains all of the components required for a natural Q fever cycle and three cases of this disease have been reported from this area since 1995. These findings reinforce the need to put in place effective mechanisms to monitor parasite distributions at a time of large scale global change.
authors.affiliation: Department of Environmental Biology, University of Adelaide, North Terrace, 5005, South Australia, Adelaide, Australia.
authors.forename: L
authors.initials: L
authors.lastname: McDiarmid
authors.forename: T
authors.initials: T
authors.lastname: Petney
authors.forename: B
authors.initials: B
authors.lastname: Dixon
authors.forename: R
authors.initials: R
authors.lastname: Andrews
mesh_terms: D000818:Animals; D001483:Base Sequence; D016384:Consensus Sequence; D017931:DNA Primers / Q000737:chemistry; D004272:DNA, Mitochondrial / Q000737:chemistry / Q000302:isolation & purification; D004275:DNA, Ribosomal / Q000737:chemistry / Q000302:isolation & purification; D004587:Electrophoresis, Agar Gel; D005260:Female; D006801:Humans; D007303:Insect Vectors / Q000235:genetics / Q000254:growth & development*; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D011778:Q Fever / Q000635:transmission*; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012337:RNA, Ribosomal, 18S / Q000235:genetics; D017422:Sequence Analysis, DNA; D013021:South Australia; D013987:Ticks / Q000235:genetics / Q000254:growth & development*
chemical_list: D017931:DNA Primers; D004272:DNA, Mitochondrial; D004275:DNA, Ribosomal; D012336:RNA, Ribosomal, 16S; D012337:RNA, Ribosomal, 18S