プログレッシブ和英中辞典(第4版)の解説
はつびょう【発病】
帰国早々発病した
Soon after he came home, he fell [was taken] ill.
感染しても発病しない人もいた
Not everyone who was exposed became ill.
日本語の解説|発病とは
帰国早々発病した
Soon after he came home, he fell [was taken] ill.
感染しても発病しない人もいた
Not everyone who was exposed became ill.