Our whole body is infested with bacteria. I think I’m right in saying in terms of numbers they actually outnumber our own cells. Some of these are symbiotic, we rely on them to do what they do, and they rely on us. The large majority of them we have a sort of ‘better the devil you know’ agreement. They don’t do us much (or any harm) and they also outcompete and will fight new bacteria which could be dangerous. So those cuts will be infected, but infected by friendly or at least neutral bacteria.
Latest Answers