the.com/immunization
Teaching your body to fight an enemy by showing it a mugshot first.
means Deliberately exposing the body's immune system to a weakened, dead, or partial version of a germ so it learns to recognize and destroy the real thing later.
from From 'immune,' tracing back to Latin 'immunis' — meaning 'exempt' or 'free from burden,' built from 'in-' (not) plus 'munis' (having a duty or service, related to 'municipal' and 'municipality'). Originally the word described someone exempt from taxes or public service; only later did it come to mean exempt from disease. 'Immunization,' then, is literally the act of granting the body an exemption — a legal metaphor repurposed for biology.
- origin word
- from latin immunis, meaning exempt from duty
- memory trick
- immune cells remember pathogens for decades
- biggest win
- eradicated smallpox, which killed 300 million in 1900s alone
- herd effect
- protects unvaccinated people too, if enough others immune