Canine Ehrlichiosis: What Owners Should Know
📝 Summary
Canine ehrlichiosis stages from acute to chronic, its bleed-prone low platelets, and the blood, imaging, antibody, and PCR workup that separates it from look-alikes.
1 Stages and Look-Alike Diseases
After a tick bite, the acute phase appears in eight to twenty days and lasts two to four weeks, sometimes fading on its own; some dogs stay subclinical for months, while chronic disease from two to three months on can last years with lethargy, depression, anorexia, fever, and especially low platelets that threaten bleeding. It can mimic Rocky Mountain spotted fever, immune-mediated thrombocytopenia, lupus, multiple myeloma, or chronic lymphocytic leukemia, all of which must be ruled out.
2 Diagnosis
A full tick-history, signs, and exam start the workup, then a CBC shows anemia and shifting white counts, biochemistry reveals kidney or liver enzyme and protein changes, and urinalysis catches excess protein. Platelet and clotting tests matter because low platelets are common. Chest and belly X-rays check lymph nodes and organs; a bone-marrow aspirate explains low counts and excludes myeloma or leukemia; serology finds antibodies from about day seven, and PCR detects tiny amounts of the parasite. Added tests may cover other tick diseases, abdominal ultrasound, brucellosis in swollen males, or an ANA test to tell it from lupus.
Want to learn more about pet health?
Explore our pet health channel for more science-based care guides
Read More Articles →