Crossword puzzle clue "successfully vaccinated"

exempt from; resistant to disease

IMMUNISE, to render immune from infection, also IMMUNIZE

IMMUNIZE, to render immune from infection, also IMMUNISE

MUMP, to mumble, mutter

to refrain deliberately and often with an effort of self-denial from an action or practice

ACE, to serve an unreturnable shot e.g. in tennis

to carry out successfully