If e-coli make us sick/kills us to chomp through it, how does it carry into our guts (aids within digestion) contained by 1st place?

If e-coli make us sick/kills us to chomp through it, how does it carry into our guts (aids within digestion) contained by 1st place?
First of all, nearby are different strains of E. coli, which is a bacteria. It is fragment of our natural "flora", substance that we all enjoy some living in our gut, and that doesn't variety us sick because it belongs there. However, when we ingest a different strain, read out from eating red meat, because that strain of E. coli is a foreign substance, and also because it produces a toxin, we get sick.
We hold E coli in our gut. There are billions of germs contained by our gut, they live in peace, but once contained by while we do eat something which change their balance and E coli procure out of hand next they sickness.
E-coli is part of our crude flora. There are many different strains of ecoli. Some can create bloody diarrhea like the ecoli th at you hear more or less in the word like the H1507 strain is. what determines the strain is the plasmid that they convey that contain genetic info that makes them different.