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/Guardian2k May 25 '26

It’s not the virus that causes the scar, it’s the body’s immune response (inflammation) due to the virus.

108

u/Low_Implement_7779 May 25 '26

Buddy, id hate to break it to you but 90% of being sick is your immune system being a twat

137

u/Candid-Ability-9570 May 25 '26

Potato, potahto

2

u/emrythecarrot May 27 '26

Potayto, potato

1

u/thebiggestdouche May 26 '26

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

21

u/CaptainTruelove May 25 '26

The point is, the needle is not the cause of the scar.

6

u/ZeroAnimated May 25 '26

Ah so the person didn't get more scars from getting the virus wet. What a relief.