#you CAN still get tetanus from superficial wounds it's just far less likely

[cura-te-ipsum]

https://www.cdc.gov/tetanus/index.html

tetanus fact: it's an old wives' tale that tetanus is caused by rusty metal. it's actually caused by puncture wounds substantially deeper than they are wide, which introduce ubiquitous anaerobic spores (i.e. the "seeds" of single-celled organisms which cannot grow if exposed to oxygen) into a warm, poorly-oxygenated space in the body. so receiving shallow cuts from a rusty knife is not likely to give you tetanus but puncture wounds from clean but non-sterile objects can. this is great news if you like receiving superficial wounds from rusty knives and blades and swords all over your dumbass body