vaccination (n.)
1800, used by British physician Edward Jenner (1749-1823) for the technique he publicized of preventing smallpox by injecting people with the similar but much milder cowpox virus (variolae vaccinae), from vaccine (adj.) "pertaining to cows, from cows" (1798), from Latin vaccinus "from cows," from vacca "cow," a word of uncertain origin. A mild case of cowpox rendered one immune thereafter to smallpox. "The use of the term for diseases other than smallpox is due to Pasteur" [OED].

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The real virus:

Wetiko



It’s delicate confronting these priests of the golden bull
They preach from the pulpit of the bottom line
Their minds rustle with million dollar bills
You say Silver burns a hole in your pocket
And Gold burns a hole in your soul
Well, uranium burns a hole in forever
It just gets out of control.
– Buffy Sainte-Marie, “The Priests of the Golden Bull”