seroepidemiological study of outdoor recreationists' exposure to spotted fever group rickettsia in western australia.bushland activity has previously been linked to rickettsial exposure in eastern and central regions of australia, whereas little is known about the risks in western australia. the isolation of rickettsia gravesii sp. nov. from amblyomma triguttatum ticks and anecdotal reports of low-grade illness among bush recreationists raised the possibility of rickettsial transmission in the state. this study investigated rickettsial seroprevalence and potential risk of exposure to the spotted fever group ri ...201424935947
rickettsia gravesii sp. nov.: a novel spotted fever group rickettsia in western australian amblyomma triguttatum triguttatum ticks.a rickettsial organism harboured by amblyomma triguttatum ticks on barrow island, western australia, was discovered after reports of possible rickettsiosis among local workers. subsequent isolation of this rickettsia (strain bwi-1) in cell culture and analysis of its phylogenetic, genotypic and phenotypic relationships with type strains of rickettsia species with standing in nomenclature suggested that it was sufficiently divergent to warrant its classification as a new species. multiple gene co ...201728857025
genome sequence of rickettsia gravesii, isolated from western australian ticks.rickettsia gravesii is a new rickettsia species closely related to the human pathogen rickettsia massiliae. here, we describe the genome sequence of r. gravesii strain bwi-1, isolated from amblyomma triguttatum triguttatum ticks collected from humans on barrow island, western australia.201324285646
high prevalence of rickettsia gravesii sp. nov. in amblyomma triguttatum collected from feral pigs.a survey of ectoparasites on feral pigs identified two commonly occurring ixodid tick species; amblyomma triguttatum triguttatum and ixodes australiensis. molecular screening of a. t. triguttatum and i. australiensis for the presence of rickettsia species detected the presence of rickettsiae belonging to the spotted fever group (sfg) in 78.4% of screened a. t. triguttatum. none of the screened i. australiensis were positive for rickettsiae. sequence analysis of the glta and ompa loci of positive ...201020488632
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