在有贝克斯特生物治剂治疗之前，血友病人完全依赖摄取自血浆的第8因子蛋白质。 不过血浆的供应又必须依赖献血，这会遇到血源污染的危险。

• Before Baxter's biotech treatment, hemophilia patients relied solely on Factor VIII proteins derived from plasma, and the supply of plasma is dependent on blood donations, which can carry the risk of contamination.