Question

How can common skin bacteria make people ill

Answer 1

I think  if you have bacteria and give that bacteria to a person that had never had that bacteria before and that person will get sick i hope i helped

Answer 2

If it gets into another part of the body where it's not supposed to be. So if you get a cut, the bacteria on your skin can travel to another part of the body and cause illness there by releasing toxins, rapidly multiplying, competing for nutrients, causing an immune response.