noun which may take the genitive case particle 'no', noun
anti-vaccine; antivax
Refers to opposition to vaccination or the anti-vaccination movement. Often used attributively with の, as in 反ワクチンの人 (anti-vaccine person).
彼は反ワクチンの考えを持っている。
He holds anti-vaccine views.
反ワクチン運動が広がっている。
The anti-vaccination movement is spreading.