Rickettsiae

Aka: Rickettsiae, Rickettsiaceae, Rickettsia, Ehrlichia, Coxiella, Rochalimaea, Rickettsial Disease

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II. Characteristics

  1. Obligate Intracellular Parasites

III. Types: Genus Rickettsia

  1. Spotted Fever Group (transmitted by fleas, mites and ticks)
    1. Rocky Mountain Spotted Fever (Rickettsia rickettsii)
    2. Rickettsial Pox (R. akari in North America)
    3. American Boutonneuse fever (R. parkeri in southeast U.S.)
    4. Finders Island Spotted Fever (R. honei in northwest U.S. as well as Australia and southeast Asia)
    5. Mediterranean Spotted Fever or Boutonneuse Fever (R. connori in the Mediterranean)
    6. Queensland Tick Typhus (R. australis in australia)
    7. African Tick BiteFever (R. africae in africa)
    8. Siberian Tick Typhus (R. sibirica in China)
  2. Typhus Group
    1. Rickettsia prowazekii (Louse-Borne Typhus)
    2. Rickettsia mooseri
    3. Rickettsia typhi (Murine Typhus)
  3. Scrub Typhus Group
    1. Rickettsia tsutsugamushi (Scrub Typhus)

IV. Types: Genus Ehrlichia

  1. Human Monocytic Ehrlichiosis (Ehrlichia chaffeensis, Ehrlichia ewingii)
  2. Human Granulocytic Anaplasmosis (Ehrlichia equi, Ehrlichia phagocytophila)

V. Types: Genus Coxiella (now in family Coxiellaceae)

  1. Coxiella Burnetii (Q Fever)

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