Allison Sadler on Instagram: "Most people have been conditioned to believe that tetanus is something lurking on every rusty nail, waiting to strike. But tetanus doesn’t actually come from rust at all—it comes from Clostridium tetani, a bacteria most commonly found in manure and soil. And here’s the thing—it can’t survive in oxygen-rich environments. That means unless you have a deep, puncture wound that doesn’t bleed and you’ve been walking barefoot through manure, your odds of contracting it ar