immunize

verb2

1. •
   To make someone or something immune to something.

   • It is now clear that the brevity of an indecent broadcast – be it word or image – cannot immunize it from FCC censure. — 2012
2. •
   To inoculate someone, and thus produce immunity from a disease.

   • At issue is the so-called MMR vaccine, which immunizes children against measles, mumps and rubella, three potentially deadly diseases that were once common and have been mostly wiped out. — 2002