Ehrlichiosis causes serious illness that may become chronic if unrecognized. Understanding the clinical spectrum helps owners seek timely veterinary assessment.
Ehrlichiosis causes significant suffering through its acute phase and devastating chronic phase. Dogs with chronic ehrlichiosis suffer severe anemia, bleeding disorders, weight loss, and profound weakness. The transition from treatable acute disease to debilitating chronic disease occurs when treatment is inadequate or delayed. Complete, 4-week doxycycline treatment during the acute phase is the welfare-critical intervention that prevents the catastrophic chronic disease that otherwise develops in some dogs.