What Is Canine Babesiosis?
📝 Summary
Babesiosis is a protozoal blood parasite carried by ticks that attacks a dog's red cells and causes anemia; it also spreads through bites, fights, or across the placenta. Diagnosis is by blood smear or PCR, and treatment uses antiprotozoal injections, though relapse and lifelong carriage are common — so tick control is vital.
1 Common Symptoms
Once infected, a dog will develop anemia. Typical signs are tiredness, swollen lymph nodes, fever, poor appetite, pale mucous membranes, red or orange urine, yellowing of the whites of the eyes and gums (jaundice), and weight loss. Symptoms vary — some dogs are mild or show none, while others suffer organ damage or even death.
2 How It’s Diagnosed
(1) History: check for tick exposure, fight/bite wounds, or transfusions; for puppies, check whether the mother is infected. (2) Blood work: many cases show slightly low platelets and red cells, and a smear may reveal the parasite — finding it on a smear confirms the disease. (3) Antibody and PCR testing detect babesia antigen in the blood and identify the exact species, which guides treatment, since infection levels differ.
3 Treatment
(1) Artemether injection at 7 mg/kg intramuscularly, once daily for two days. (2) Or imidocarb at 5 mg/kg intramuscularly, once daily for two days, plus symptomatic and supportive care. (3) For severe anemia, a blood transfusion plus antibiotics to prevent secondary infection. (4) Note: anti-babesia drugs carry notable side effects and may harm the liver or kidneys, and relapse after treatment is possible, with many dogs becoming lifelong carriers. Prevention — tick control in the kennel and surroundings during tick season — is therefore crucial.
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