PROBLEM TO BE SOLVED: To provide a method for treatment of blood, blood products and organs for preventing the transmission of Alzheimer's disease and other amyloid-based diseases.SOLUTION: The present invention provides a method for using amyloid β-oligomer-modifying ligands, for example, amyloid β-antibodies or amyloid β-binding peptides to treat blood, blood products and organs, for the removal and/or detoxification of amyloid-beta oligomers.SELECTED DRAWING: NoneCOPYRIGHT: (C)2020,JPO&INPIT【課題】アルツハイマー病及び他のアミロイドベースの疾患の伝染を予防するための血液、血液生成物及び器官を処置する方法の提供。【解決手段】アミロイドβ-オリゴマー変性リガンド、例えば、アミロイドβ-抗体又はアミロイドβ-結合ペプチドを使用して血液、血液生成物及び器官を処置しアミロイドβ-オリゴマーを除去及び/又は解毒する方法。【選択図】なし