noun, noun which may take the genitive case particle 'no'
serious illness; severe condition
Refers to a serious or severe medical condition, often contrasted with 軽症 (mild illness). Used both as a noun and adjectivally with の.
See also: 軽症
He was hospitalized with a serious illness.
Patients with severe conditions are treated with priority.
The critically ill patient was taken to the intensive care unit.
Because treatment was delayed, her condition became serious.
The infection worsened, and the patient fell into a serious condition.
critically ill patient; patient with a severe condition
myasthenia gravis
severe acute respiratory syndrome; SARS
severe fever with thrombocytopenia syndrome; SFTS