A mixed infection of Babesia equi and Babesia caballi in a racing colt: A report from Iran

Babesiosis was diagnosed in a three-year-old racing Thoroughbred colt with recurrent, intermittent fever, poor performance, malaise, and one occasion of diarrhea. Other signs included congestion of mucous membranes and petech ial hemorrhages of conjunctival mucous membranes. Babesia caballi and B. eq ui were identified on blood smear. when the colt had fever. The colt was tr eated with Imidocarb (4 mg/kg four times at 72 intervals) and returned to r egular exercise and competition four months after treatment. The colt and t wo other horses which showed babesial infection had been transported from T urkmen district to Mashhad city.