I think they are in everyone’s bodies as part of the flora so if you have too much of it like when there is an imbalance under maybe if you have weakened immune

I think they are in everyone’s bodies as part of the flora so if you have too much of it like when there is an imbalance under maybe if you have weakened immune that could be a problem. Treat it as a probability like how often you can get hurt driving a car, and don’t worry about it