Electrocardiographic evaluation of TcVac4-immunized dogs post challenge infection with T. cruzi.

Dogs were vaccinated and challenged with T. cruzi as described in Materials and Methods. Cardiac hemodynamics were monitored by electrocardiography, and graded as 0–10, 10 being most severe. HAD, High axis deviation; LVC, Low Voltage Complex; ICP, Interventricular conduction Problems; RP, Repolarization Problems. Type II (Mobitz) AVB, 2nd degree Atrio-Ventricular Block; ADR, Axis deviation to the right; Small QRS, reduced QRS wave; ND, Not determined (animals not included for the study of these parameters).Electrocardiographic evaluation of TcVac4-immunized dogs post challenge infection with T. cruzi.