ADAMTS13 and COVID-19: Respective median ADAMTS13 antigen and activity levels were 0.806 (IQR:0.592–1.023) and 0.597 (IQR:0.427–0.767) U/mL in COVID-19 (+) and 0.813 (IQR:0.614–1.069) and 0.54 (IQR:0.420–0.689) U/mL in COVID-19 (−) patients.