noun
strange disease; rare disease
Refers to an unusual, mysterious, or very rare illness. Often used in medical contexts, news reports, or dramatic descriptions.
その村で奇病が流行しているという噂だ。
There is a rumor that a strange disease is spreading in that village.
彼は幼い頃に奇病にかかり、長く入院していた。
He contracted a rare disease as a child and was hospitalized for a long time.