FIG. 3.
Representative electrocardiographic tracing. Selected segments of an ECG and blood pressure recording for a rabbit given 40 × 108 CFU of the Agg+ strain is shown. Note ST-segment depression and alternating preventricular contractions (PVCs) by 10 min. The ST-segment depression persists through t = 30 min, the heart rate remains elevated, and the pulse pressure is greatly reduced.