sudden illness; acute illness
Refers to an illness that strikes suddenly and often requires urgent attention. Common in medical and everyday contexts.
彼は急病で入院した。
He was hospitalized with a sudden illness.
急病のため、会議を欠席します。
I will be absent from the meeting due to a sudden illness.
He suddenly fell ill during the trip.
My grandfather was rushed to the hospital due to a sudden illness.
I got word that my father had suddenly fallen ill while I was at work.