You shall write, "He died of fever and a weakened condition."

你应该写上，他死于热病和身体虚弱。

youdao

There he caught fever and died at the age of 33.

他在那个地方患上了流感，33岁就去世了。

youdao

He died in 323, when he was not yet 33-years-old, and he died in Babylon of a fever, that is, of course, modern day Iraq.

他死于公元前323年，未满33岁，在巴比伦死于疟疾，也就是现代伊拉克。

youdao

He died in 323, when he was not yet 33-years-old, and he died in Babylon of a fever, that is, of course, modern day Iraq.

他死于公元前323年，未满33岁，在巴比伦死于疟疾，也就是现代伊拉克。

耶鲁公开课 - 新约课程节选

Priscilla, from Connecticut, says her relative gave his life for the freedom of others - he died of Yellow Fever 18 months after establishing Mitchelville.

BBC: Mitchelville: The hidden town at dawn of freedom