| Species
|
Disease
|
Vector
|
Clinical Clues
|
| Rickettsiae: Spotted fever group
|
| Rickettsia rickettsii
|
Rocky Mountain spotted fever
|
Multiple Dermacentor, Amblyomma, and Rhipicephalus ticks
|
Centripetal rash without eschar in the Americas
|
| Rickettsia conorii
|
Boutonneuse fever, Mediterranean spotted fever
|
Rhipicephalus sanguineus ticks
|
Rash with eschar, predominantly Mediterranean and Black Sea
|
| Rickettsia japonica
|
Oriental spotter fever
|
Dermacentor, Haemaphysalis, or Ixodes ticks
|
Rash with eschar, acquired in Asia
|
| Rickettsia sibirica mongolitimonae
|
|
Rickettsia sanguineus
|
Rash with eschar, acquired in Europe, Africa, or Asia
|
| Rickettsia sibirica sibirica
|
|
Dermacentor ticks
|
Rash with eschar, acquired in Asia or southern Russia
|
| Rickettsia australis
|
|
Ixodes ticks
|
Vesicular rash with eschar, acquired in Australia
|
| Rickettsia slovaca
|
Tick-borne lymphadenopathy
|
Dermacentor marginatus
|
Eschar (often scalp) with regional lymphadenopathy, acquired in Europe
|
| Rickettsia africae
|
African tick-bite fever
|
Amblyomma hebraeum and Amblyomma variegatum
|
Vesicular rash with eschar, acquired in Africa or the Caribbean
|
| Rickettsia honei
|
|
Bothriocroton, Haemaphysalis, Ixodes, or Rhipicephalus ticks
|
Rash with eschar acquired in Flinders Islands, eastern Australia, Thailand, or Nepal
|
| Rickettsia aeschlimanii
|
|
Hyalomma or Rhipicephalus ticks
|
Rash with eschar, acquired in Africa or Europe
|
| Rickettsia helvetica |
|
Tick |
|
| Rickettsia parkeri
|
|
Amblyomma maculatum ticks
|
Rash with eschar, acquired in the Americas
|
| Rickettsia heilongjianghensis
|
|
Dermacentor or Haemaphysalis ticks
|
Rash with eschar, acquired in Asia
|
| Rickettsia raoultii
|
|
Dermacentor ticks
|
Eschar (often scalp) with regional lymphadenopathy, acquired in Europe
|
| Rickettsia massiliae
|
|
Rickettsia sanguineous
|
Rash with eschar, acquired in Europe, Africa, and the Americas
|
| Rickettsia amblyommii |
|
Tick |
|
| Rickettsia monacensis |
|
Tick |
|
| Rickettsia philipii strain 364D
|
|
Dermcentor occidentalis
|
Eschar (often scalp) with regional lymphadenopathy, acquired in California
|
| Rickettsia felis
|
|
Flea
|
Rash with eschar and flea exposure
|
| Rickettsia akari
|
Rickettsialpox
|
Liponyssoides sanguineus house mouse mites
|
Vesicular rash with eschar, worldwide
|
| Rickettiae: Typhus group
|
| Rickettsia typhi
|
Endemic (murine) typhus
|
Xenopsylla cheopis (rat flea) and Ctenocephalides felis (cat flea)
|
Centrifugal rash without eschar in the tropics or subtropics, with flea exposure
|
| Rickettsia prowazekii
|
Epidemic (louse-borne) typhus
|
Pediculus humanus humanus (human body louse)
|
Centrifugal rash without eschar, with exposure to flying squirrel or other
|
| Rickettsiae: Scrub typhus group
|
| Orientia tsutsugamushi
|
Scrub typhus
|
Leptotrombidium mites (chiggers, trombiculid mites)
|
Rash with eschar, acquired in Asian Pacific, Chile, or Dubai
|
| Anaplasma
|
| Amblyomma phagocytophilum
|
Human granulocytotropic anaplasmosis
|
Tick
|
|
| Ehrlichia
|
| Ehrlichia chaffeensis
|
Human granulocytotropic anaplasmosis
|
Amblyomma americanum ticks (the Lone Star tick)
|
|
| Ehrlichia ewingii
|
Human granulocytotropic anaplasmosis
|
Amblyomma americanum and Dermacentor variabilis ticks
|
|
| Ehrlichia canis |
|
Tick |
|
| Other
|
| Neoehrlichia mikurensis |
|
Tick |
|
| Neorickettsia sennetsu |
|
Raw fish |
|
| Wolbachia species |
|
Helminths |
|
