|Cell Wall: Gram Negative||Shape: Rod|
|Life Cyle: Obligate Intracellular Parasite|
- The major reservoir of Ehrilichia species are mammals such as wild deer and dogs. Transmission to humans occurs via tick vectors which have previously taken blood meals from infected animals.
- Ehrlichiosis is characterized by severe headache and fever roughly a week after inoculation. A Skin rash may develop but occurs only in a minority of patients.