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Table 1 Antimicrobial MIC Values of STEC O157:H7 strains examined in this study

From: Antimicrobial resistance profiles of Shiga toxin-producing Escherichia coli O157 and Non-O157 recovered from domestic farm animals in rural communities in Northwestern Mexico

Serotype Strain Sourcea Antimicrobial MIC Values (μg/mL)
AMC AMK AMP CAZ CEF CFP CHL CIP CRO GEN IPM KAN NAL SXT TET
O157:H7 RM8744 Cattle ≤8/4 ≤ 16 ≤ 8 ≤ 4 ≥ 32b 32c 16c ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM8753 Sheep ≤ 8/4 32c ≤ 8 ≤ 4 ≥ 32b ≤ 16 16c ≤ 1 ≤ 1 ≤ 4 ≤ 1 32c ≤ 16 ≤ 2/38 ≤ 4
RM8754 Cattle ≤ 8/4 ≤ 16 ≤ 8 ≤ 4 ≤ 8 ≤ 16 ≤ 8 ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM8759 Sheep ≤ 8/4 ≤ 16 ≤ 8 ≤ 4 ≥ 32b ≤ 16 ≤ 8 ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM8767 Cattle ≤ 8/4 ≤ 16 ≤ 8 ≤ 4 16c ≤ 16 ≤ 8 ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM8768 Cattle ≤ 8/4 ≤ 16 ≤ 8 ≤ 4 ≥ 32b ≤ 16 16c ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM8769 Cattle ≤ 8/4 ≤ 16 ≤ 8 ≤ 4 ≤ 8 ≤ 16 16c ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM8771 Cattle ≤ 8/4 ≤ 16 ≤ 8 ≤ 4 ≤ 8 ≤ 16 16c ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM8781 Sheep ≤ 8/4 ≤ 16 ≤ 8 ≤ 4 16c ≤ 16 ≤ 8 ≤ 1 ≤ 1 ≤ 4 ≤ 1 32c ≤ 16 ≤ 2/38 ≤ 4
RM8920 Sheep ≤ 8/4 ≤ 16 ≤ 8 ≤ 4 16c ≤ 16 16c ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM8921 Sheep ≤ 8/4 ≤ 16 ≤ 8 ≤ 4 ≥ 32b ≤ 16 16c ≤ 1 ≤ 1 ≤ 4 ≤ 1 32c ≤ 16 ≤ 2/38 ≤ 4
RM8922 Cattle ≤ 8/4 ≤ 16 ≤ 8 ≤ 4 16c ≤ 16 ≤ 8 ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM9450 Sheep ≤ 8/4 ≤ 16 ≤ 8 ≤ 4 ≥ 32b ≤ 16 ≤ 8 ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM9451 Sheep ≤ 8/4 ≤ 16 ≤ 8 ≤ 4 16c ≤ 16 ≥ 32b ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≥ 64b ≤ 16 ≤ 2/38 ≥ 16b
RM9452 Sheep ≤ 8/4 ≤ 16 ≤ 8 ≤ 4 ≥ 32b ≤ 16 16c ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM9453 Sheep ≤ 8/4 32c ≤ 8 ≤ 4 ≥ 32b ≤ 16 16c ≤ 1 ≤ 1 ≤ 4 ≤ 1 32c ≤ 16 ≤ 2/38 ≤ 4
RM9454 Cattle ≤ 8/4 ≤ 16 ≥ 32b ≤ 4 16c ≤ 16 ≤ 8 ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM9455 Cattle ≤ 8/4 ≤ 16 ≥ 32b ≤ 4 16c ≤ 16 ≤ 8 ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM9456 Cattle ≤ 8/4 ≤ 16 ≥ 32b ≤ 4 16c ≤ 16 16c ≤ 1 ≤ 1 ≤ 4 ≤ 1 32c ≤ 16 ≤ 2/38 ≤ 4
RM9457 Cattle ≤ 8/4 ≤ 16 ≥ 32b ≤ 4 16c ≤ 16 ≤ 8 ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM9458 Chicken ≤ 8/4 ≤ 16 ≥ 32b ≤ 4 16c ≤ 16 ≤ 8 ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM9459 Chicken ≤ 8/4 ≤ 16 ≥ 32b ≤ 4 16c ≤ 16 ≤ 8 ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM9460 Cattle ≤ 8/4 ≤ 16 ≥ 32b ≤ 4 16c ≤ 16 ≤ 8 ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM9461 Cattle ≤ 8/4 ≤ 16 ≥ 32b ≤ 4 16c ≤ 16 ≤ 8 ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
RM9462 Cattle 16/8c 32c ≥ 32b ≤ 4 16c ≤ 16 ≤ 8 ≤ 1 ≤ 1 ≤ 4 ≤ 1 32c ≤ 16 ≤ 2/38 ≤ 4
RM9463 Sheep ≤ 8/4 ≤ 16 ≥ 32b ≤ 4 ≤ 8 ≤ 16 ≤ 8 ≤ 1 ≤ 1 ≤ 4 ≤ 1 ≤ 16 ≤ 16 ≤ 2/38 ≤ 4
  1. aDomestic animal samples were collected from distinct regions in the Culiacan Valley, Sinaloa, Mexico [16]
  2. bMIC value in bold indicates resistance to the tested antimicrobial, according to CLSI guidelines [23]
  3. cMIC value indicates an intermediate susceptibility to the tested antimicrobial, according to CLSI guidelines [23]