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flinders island spotted fever: a newly recognised endemic focus of tick typhus in bass strait. part 2. serological investigations.twenty-six cases of a spotted-fever-like illness have been identified on flinders island, tasmania, over a 17 year period. these patients and 335 healthy persons from the island were investigated serologically using the weil-felix agglutination test (proteus sp. antigens ox2, ox19, oxk) and rickettsia-specific microimmunofluorescence. the antigens used in these latter tests comprised one member of the typhus group (rickettsia typhi) and three members of the spotted fever group (rickettsia ricket ...19911898756
spotted fever group rickettsial infections in australia.more than four decades ago, rickettsia australis was discovered to be the etiologic agent of queensland tick typhus (qtt), yet many unanswered questions persist about the ecology, epidemiology, and clinical features of this disease. we review 46 previously published cases of qtt along with 16 cases discovered by active surveillance. qtt is usually a mild disease. patients often have regional lymphadenopathy and eschars. some have vesicular rashes. because clinical features overlap, serologic tes ...19911962102
enzyme-linked immunosorbent assays for detecting antibody to rickettsia australis in sera of various animal species.new endemic areas of spotted fever-like rickettsial disease have been found in south-eastern australia (gippsland, victoria and flinders island, tasmania). the rickettsia responsible is currently unknown although it may be rickettsia australis. to investigate serological evidence of rickettsial exposure in various wild animal species, a competitive elisa was developed which detected antibodies to r. australis. it was based on inhibition of an indirect elisa detecting antibody to r. australis in ...19902292182
spotted fever group rickettsial infection in south-eastern australia: isolation of rickettsiae.flinders island spotted fever (fisf), a spotted fever group (sfg) rickettsial disease first described in 1991, occurs in south-eastern australia. the isolation of the aetiological agent is described for the first time having been obtained from the blood of two patients. an additional 22 cases are also reported. of these patients four had positive initial serology, and 20 showed seroconversion (using rickettsia australis as antigen). acute phase blood specimens taken from seven patients caused ne ...19938403837
vectors vs. humans in australia--who is on top down under? an update on vector-borne disease and research on vectors in australia.australia has a diversity of vectors and vector-borne human diseases. mosquito-borne arboviruses are of greatest concern, but there are issues with other vector and pathogen systems. mosquitoes were responsible for more than 35,000 cases of ross river virus during 1991-1997. barmah forest virus is increasing nationwide, and unidentified bunyaviruses suspected of causing illness have been isolated. cases of murray valley encephalitis have occurred in 14 of the past 20 years in northern australia. ...19989673928
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