不ふ活かつ化かワクチン

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Meanings

1

noun

inactivated vaccine

medicine

A vaccine made from killed pathogens; used in medical contexts.

negative, non-, bad

活lively, resuscitation, being helped

化change, take the form of, influence

生なまワクチン
生ワクチン is a live attenuated vaccine, while 不活化ワクチン uses killed pathogens.

Compound of 不活化 (inactivation) + ワクチン (vaccine), a direct calque of the English medical term.