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Table 1 Rickettsiae reported from Ontario, or associated with vectors, or inveterate hosts present in Ontario

From: Assessing human exposure to spotted fever and typhus group rickettsiae in Ontario, Canada (2013–2018): a retrospective, cross-sectional study

Rickettsiaea Disease Potential Ontario vectors or invertebrate hosts
Spotted fever group
Rickettsia akari Rickettsialpox Mites:Liponyssoides sanguineus
Rickettsia felis Flea-borne spotted fever Fleas: Ctenocephalides felis
Rickettsia montanensis Unknown pathogenicityb Ticks:Amblyomma americanum, Dermacentor variabilis
Rickettsia peacockii Endosymbiont, non-pathogenic Ticks:D. variabilis
Rickettsia rickettsii Rocky Mountain spotted fever Ticks:A. americanum, D. variabilis
Typhus group
Rickettsia typhi Murine typhus Fleas: C. felis
Ancestral group
Rickettsia canadensis Endosymbiont, non-pathogenic Ticks: Haemaphysalis leporispalustris
  1. a Selected references [5, 12,13,14,15,16,17,18,19,20]. Not included are rickettsiae detected in adventitious ticks collected in Ontario (Rickettsia parkeri in Amblyomma maculatum) [16]
  2. bWhile human infections have been associated with this Rickettsia species, investigators did not confirm the etiological agent involved [21]