自し然ぜん免めん疫えき

noun

natural immunity; innate immunity

Medical term for the body's inborn defense system, as opposed to acquired immunity (獲得免疫).

• 自し然ぜん免めん疫えきは、生うまれつき備そなわっている防ぼう御ぎょ機き構こうです。

  Natural immunity is the defense mechanism we are born with.

• ワクチンは獲かく得とく免めん疫えきを利り用ようするが、自し然ぜん免めん疫えきも重じゅう要ような役やく割わりを果はたす。

  Vaccines use acquired immunity, but natural immunity also plays an important role.