PMC9433696_01
Electrocardiogram (ECG) of Patient 5. The initial ECG showed ST-segment elevation in leads I, II, and V3-6 (arrows). The ECG on the third day of illness was normal.
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F1
ECG showed ST elevation in leads I, II, and V3-6 (Figure 1). Echocardiography revealed a left ventricular ejection fraction of 68%, mild pericardial effusion, and increased epicardial echodensity.