inoculate
verb [ T ] uk/ɪˈnɒk.jə.leɪt/ us/ɪˈnɑː.kjə.leɪt/
给…接种，给…作预防注射
to give a weak form of a disease to a person or animal, usually by injection, as a protection against that disease
My children have been inoculated against polio. 我的孩子都打了小儿麻痹预防针。