is in the hospital
彼のお父さんは今入院中だそうです。
I hear his father is currently in the hospital.
“クレリチ氏の父親は精神病院に入院中だが”
Clerici's father is currently in a psychiatric hospital, but...
— 暗殺の森 (1971)
トムはメアリーが入院中だって知らなかったんだ。
Tom didn't know that Mary was in the hospital.
彼女は今、入院中だそうだ。
I hear she’s currently in the hospital.