| prevalence of antibodies to spotted fever group rickettsiae in dogs from southeastern australia. | recent epidemiologic data suggests that rickettsia australis, the cause of queensland tick typhus, is present in southeastern australia. in order to further confirm this observation, a canine serosurvey was undertaken to determine if naturally occurring antibodies were present in pet and farm dogs from this newly-recognized endemic area. thirty-five of 312 surveyed dogs (11.2%) had indirect immunofluorescent antibody titers of 1:64 or greater against r. australis antigen. positive control sera w ... | 1991 | 1877719 |