Ehrlichia

Ehrlichia /Ehr·lich·ia/ (ar-lik´e-ah) a genus of the tribe Ehrlichieae transmitted by ticks and causing disease in dogs, cattle, sheep, horses, and humans, including the species E. ca´nis, E. chaffeen´sis, E. e´qui, and E. sennet´su.

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Ehr·lich·i·a (âr-lk-)

n.

A genus of bacteria of the order Rickettsiales that occur singly or in inclusions in circulating white blood cells.

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Ehrlichia

a genus of bacteria in the family Anaplasmataceae, order Rickettsiales, recently reclassified so that some species are now Anaplasma and some as Neorickettsia. All are intracellular parasites of leukocytes and endothelial cells of animals or humans and require a vector for transmission. See also Rickettsia, Anaplasma, Neorickettsia.

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Ehrlichia bovis

see Anaplasmabovis.

Ehrlichia canis

causes canine monocytic ehrlichiosis.

Ehrlichia equi

see Anaplasmaphagocytophila.

Ehrlichia ewingii

causes canine granulocytic ehrlichiosis.

Ehrlichia ondiri

causes ondiri disease. Called also bovine petechial fever.

Ehrlichia ovina

now Anaplasmaphagocytophila; causes benign ovine rickettsiosis.

Ehrlichia phagocytophila

see Anaplasmaphagocytophila.

Ehrlichia platys

now Anaplasmaplatys.

Ehrlichia risticii

see Neorickettsiaristicii.

Ehrlichia ruminantium

cause of heartwater in cattle and transmitted by Amblyomma spp. Previously classified as Rickettsia ruminantium and Cowdria ruminantium.