Ehrlichia ewingii


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Ehrlichia ewingii

An ehrlichial species that causes human granulocytic ehrlichiosis in Tennessee and neighboring states.
See also: Ehrlichia
References in periodicals archive ?
* Expanded Geographic Distribution and Clinical Characteristics of Ehrlichia ewingii Infections, United States
In addition to E chaffeensis, two other causes of ehrlichiosis are Anaplasma phagocytophilum, the causative organism in human granulocytic anaplasmosis, and Ehrlichia ewingii. While the latter two organisms differ from E chaffeensis primarily in their vectors and cellular targets (neutrophils), their clinical presentations are virtually indistinguishable.
Hancock, "Sequential evaluation of dogs naturally infected with Ehrlichia canis, Ehrlichia chaffeensis, Ehrlichia equi, Ehrlichia ewingii, or Bartonella vinsonii" Journal of Clinical Microbiology, vol.
Rickettsiae and related ehrlichial organisms are obligate intracellular bacteria carried by mites, fleas, ticks, and lice and are the agents of numerous tick-borne diseases found in Virginia, such as Rocky Mountain spotted fever (Rickettsia rickettsii), Tidewater spotted fever (Rickettsia parkeri), Human monotropic ehrlichiosis (Ehrlichia chaffeensis), and Ewingii ehrlichiosis (Ehrlichia ewingii).
The order should be as follows: Anaplasma phagocytophilum, Ehrlichia chaffeensis, Ehrlichia ewingii, and Undetermined.
LST's transmit STARI, southern tick associated rash illness, a disease that mimics Lyme disease, as well as monocytic ehrlichiosis, Ehrlichia ewingii ehrlichiosis, rickettsiosis and tularemia.
(3) There also have been a few documented cases of HME caused by Ehrlichia ewingii. Both bacteria are transmitted by the lone star tick (Amblyomma amerieanum), a vector thought to feed primarily on the white-tailed deer (Odocoileus virginianus).
Other causes of tick-borne ehrlichioses, including Ehrlichia ewingii. In Tick-Borne Diseases of Humans, edited by J.