Canadian Medical Guide > Organisms > Bacteria > Gram-Negative Bacteria > Anaplasmataceae > Ehrlichia Terms and Definitions
Ehrlichia
Medical Definition: | Small, often pleomorphic, coccoid to ellipsoidal organisms occurring intracytoplasmically in circulating LYMPHOCYTES. They are the etiologic agents of tick-borne diseases of humans, DOGS, CATTLE, SHEEP, GOATS, and HORSES. |
Guide Notes: | infection = EHRLICHIOSIS |
Also Called: | Ehrlichia ewingii |
Ehrlichia canis - Species of gram-negative bacteria in the family ANAPLASMATACEAE, causing EHRLICHIOSIS in DOGS. The most common vector is the brown dog tick. It can also cause disease in humans. | |
Ehrlichia chaffeensis - A species of gram-negative bacteria that is the causative agent of human EHRLICHIOSIS. This organism was first discovered at Fort Chaffee, Arkansas, when blood samples from suspected human ehrlichiosis patients were studied. | |
Ehrlichia ruminantium - A species of gram-negative bacteria in the family ANAPLASMATACEAE, that causes HEARTWATER DISEASE in ruminants. |
Ehrlichia Medical Definitions and Terms
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