This is the 873rd most frequent Chinese word.
重症
"Severe illness" or "critical condition."
In this sentence, '重症' is used as a noun to describe a severe or critical medical condition.
病人由于感染病毒而患上了重症。
The patient developed a severe condition due to viral infection.
Here, '重症' is a modifier describing '病人' (patients), indicating that these patients are in a severe health condition.
医生特别关注那些重症病人的治疗进展。
The doctor pays special attention to the treatment progress of patients with critical conditions.
In this example, '重症' works as an adjective within '重症监护病房' (intensive care unit), referring to the unit dealing with critical cases.