With one of its locations in Spokane, Wash., ZLB Plasma is one of the largest collectors of human plasma in the world. It is a division of CSL Behring, which is a plasma biotherapies company that is headquartered in King of Prussia, Pa. CSL Behring researches, develops, manufactures and markets biotherapies used to treat serious diseases. It operates a manufacturing plant in Kankakee, Ill. The...