patrik3031 t1_j2dsc8j wrote
Reply to comment by ivthreadp110 in ELI5: What makes the rust on a rusty nail different from the rust on shaving razors to where one needs an immediate tetanus shot and the other happens daily by DrySyllabub2563
Additionaly the cut depth matters, nicks are less likely to give you tetanus than stepping on a nail.
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