Why within is no Tetanus from Diabetic foot wound?
Answers:
There are a few factors:
1) Vaccination for tetanus works powerfully.
2) Wound might not be contaminated with Clostridium tetani (causitive agent of tetanus)
3) C. tetani is extremely oxygen sensitive. Minute amounts of oxygen will kill vegetative cell (and spores wont germinate in its presence). Tetanus results from wound contamination, but it requires a deep puncture wound which blocks some blood flow (reduces oxygen concentration locally) and get the spores deep enough surrounded by the tissue that there isn't residual oxygen diffusion from the air.
This is duplicate reasoning for why we don't all get gas gangrene and die from unsystematic cuts and scrapes, since C. perfringens frequently contaminates wounds. Source(s): PhD microbiology
Tetanus is caused by a bacteria, as the party above me pointed out. The bacteria is common surrounded by the soil, but it requires an absence of atmospheric oxygen to grow. If your skin gets punctured by something, close to a nail, that bacteria can be pushed far up into your tissue, where on earth there is no atmospheric oxygen. Yes, there is oxygen, but it's bound up by your blood stream, so it won't interfere near the bacteria.
With a diabetic foot wound, there be no initial injury to expose you to the bacteria.
Probably Because They Are Already Covered By Prior Vaccination.
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