TABLE 2 

Antimicrobial drug susceptibility of E. coli isolates of the 12 genotypes shared by human urine and retail meat samplesa

Genotype
(total no. of
isolates typed)
Human urine samplesRetail meat samplesP value
No. of pan-
susceptible
isolatesb
Drug resistancec
(no. of isolates)
No. of pan-
susceptible
isolates
Drug resistance
(no. of isolates)
ST117 (14)109AMP (1)
GEN (2)
TMP-SMZ+GEN (1)1.00
ST10 (13)2AMP (2)5AMP (1)
AMP+TMP-SMZ (1)TMP-SMZ (1)0.29
AMP+CTX+TMP-SMZ+GEN (1)
ST69 (29)4AMP (3)1AMP (6)
TMP-SMZ (1)
AMP+TMP-SMZ (11)
AMP+TMP-SMZ+GEN (1)1.00
AMP+TMP-SMZ+FOS (1)
AMP+TMP-SMZ+GEN+CTX+CIP (1)
ST101 (6)0AMP (1)500.17
ST38 (3)0AMP+CTX+TMP-SMZ+NIT (1)0AMP (1)
NIT (1)1.00
ST131 (14)3AMP+CIP (2)1GEN (1)
AMP+GEN (1)
AMP+TMP-SMZ+GEN (1)0.51
AMP+TMP-SMZ+CIP (1)
AMP+CIP+GEN+CTX+CAZ (3)
AMP+CIP+GEN+CTX+CAZ+TMP-SMZ (1)
ST1844 (3)10201.00
ST80 (2)10101.00
ST88 (3)0AMP (2)0AMP+GEN (1)1.00
ST569 (3)1AMP (1)101.00
ST906 (2)10101.00
ST2562 (2)10101.00
Total153627160.002
  • a Antimicrobial drug abbreviations: AMP, ampicillin; CAZ, ceftazidime; CIP, ciprofloxacin; CTX, cefotaxime; GEN, gentamicin; NIT, nitrofurantoin; TMP-SMZ, trimethoprim-sulfamethoxazole.

  • b Pan-susceptible isolates were defined as those susceptible to all nine antimicrobial agents tested: AMP, TMP-SMZ, CIP, CTX, FOX, CAZ, NIT, FOS, and GEN. 

  • c Resistant isolates contain those resistant to at least one antimicrobial agent of nine antimicrobial agents tested: AMP, TMP-SMZ, CIP, CTX, FOX, CAZ, NIT, FOS, and GEN. Resistance to specific antimicrobial agents is indicated.