Antibiotics resistance is located int he micro-organism and not in the host (human, animal) cells. Resistance genes are located on so called plasmids which are exchanged between different bacteria and this is what the article talks about. Therefore breeding lots of E. coli with antibiotics resistance in cows will leed to these bacteria to swap plasmids with E. coli living in the human body (digestion system) if they get in contact. So humans can be infected with resistant bacteria without ever coming into contact with antibiotics
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Antibiotics resistance is located int he micro-organism and not in the host (human, animal) cells. Resistance genes are located on so called plasmids which are exchanged between different bacteria and this is what the article talks about. Therefore breeding lots of E. coli with antibiotics resistance in cows will leed to these bacteria to swap plasmids with E. coli living in the human body (digestion system) if they get in contact. So humans can be infected with resistant bacteria without ever coming into contact with antibiotics