How can ecoli live in colon?

Answer 1

E. coli can live in the colon because it is a natural inhabitant of the human gut microbiota. It thrives in the anaerobic environment of the colon, where it benefits from the nutrients present in digested food. Some strains of E. coli are beneficial, aiding in digestion and producing essential vitamins, while others can be pathogenic, causing illness. The balance of these bacteria is critical for maintaining gut health.