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Competitive colonizations between E. coli pathotypes and an enterohemorrhagic strain. (A and B) Two sets of 3 mice were fed 105 CFU of E. coli EDL933 Strr Rifr and 10 days later were fed 105 CFU of E. coli CFT073 Strr Nalr (UPEC) (A), and the reciprocal experiment was conducted (B). (C and D) Two sets of 3 mice were fed 105 CFU of E. coli EDL933 Strr Rifr and 10 days later were fed 105 CFU of E. coli E2348/69 Strr Nalr (EPEC) (C), and the reciprocal experiment was conducted (D).
