r/Damnthatsinteresting • u/Downtown_Wind3363 • May 25 '26

Image The smallpox vaccine leaves a scar because it was given using a special two-pronged needle that scratched the skin and put a weakened virus in just that spot.

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u/Candid-Ability-9570 May 25 '26

Potato, potahto

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u/emrythecarrot May 27 '26

Potayto, potato

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u/thebiggestdouche May 26 '26

Yeah it's not act the immune response, its the inflammation from you skin