Babesia canis rossi infection in a Texas dog.

A 5-month-old intact male Boerboel dog, imported from South Africa 1 week previously, was presented to a Texas veterinarian for lethargy, anorexia, and labored breathing. The dog was febrile, anemic, leukopenic, thrombocytopenic, and slightly azotemic. Results of the IDEXX SNAP-4Dx enzyme immunoassay were negative for Dirofilaria immitis antigen and antibodies against Ehrlichia canis, Borrelia burgdorferi, and Anaplasma phagocytophilum.