- Japanese: ワクチンの接種
- Kana: ワクチンのせっしゅ
- Romaji: Wakuchin no Sesshu
- Translated: Vaccine Inoculation
Place 1 Vaccine Counter on 1 face-up monster on the field. Any monster with at least 1 Vaccine Counter is unaffected by the effects of Virus Cards. When that monster is Tributed for a Tribute Summon, or is sent to the Graveyard for a Fusion Summon, you may place 1 Vaccine Counter on the monster that was Tribute Summoned or Fusion Summoned.
- Vaccine Counter