Patients hospitalized with severe COVID-19 infections who have high levels of the blood clotting protein factor V are at elevated risk for serious injury from blood clots such as deep vein thrombosis or pulmonary embolism, according to a new study by Harvard Medical School investigators at Massachusetts General Hospital.
每年每百萬人有五人，10 百萬人是五十人，20 百萬人是一百人。
Disseminated Intravascular Coagulation | NHLBI, NIH
美國每一千人就有 1-2 人