sacrificing one's self to stop a contagion theme

A character does a self-sacrificial thing in order to contain a highly infectious disease.

Examples

Spock sacrificed his eyesight in order to defeat the neural parasites in tos1x29 "Operation -- Annihilate!", though it turned out he had second eyelids that in fact saved him.

6 total · 2 major · 4 minor

StoryLevelMotivation
movie: Alien 3 (1992) major Ripley threw herself into molten lead to prevent the Weyland-Yutani corporation executives from getting their avaricious hands the dangerous alien queen that was paraticizing her.
tos1x29 major Spock risked his life to in an effort to prevent the neural parasites from spreading around the galaxy.
ent4x11 minor Tucker stopped Hoshi from spreading the virus throughout the entire ship by dragging her back to quarantine.
futurama6x24 minor Fry agreed to be chopped into mush in order to stop the pandemic.
movie: Prometheus (2012) minor An Alien infected Charlie begged Vickers to use her flame thrower on him, and she did so without hesitation.
rd1988e7x07 minor Lister was going to blow himself up in order to destroy the Epideme virus. We briefly though Kochanski severed her own arm for the same reason.