YOU SAID:

Autoimmune disease happens when the body's natural defense system can't tell the difference between your own cells and foreign cells, causing the body to mistakenly attack normal cells.

INTO JAPANESE

自己免疫疾患は、体の自然な防御システムが自分自身の細胞と外来細胞の違いを見分けることができず、体が誤って正常な細胞を攻撃してしまうときに発生します。

BACK INTO ENGLISH

Autoimmune diseases occur when the body's natural defense system cannot tell the difference between its own cells and foreign cells, and the body mistakenly attacks healthy cells.

INTO JAPANESE

自己免疫疾患は、体の自然な防御システムが自分自身の細胞と外来細胞の違いを見分けることができず、体が誤って健康な細胞を攻撃するときに発生します。

BACK INTO ENGLISH

Autoimmune diseases occur when the body's natural defense system cannot tell the difference between its own cells and foreign cells, and the body mistakenly attacks healthy cells.