Table 2 Phylogenetic group distribution for 153 E. coli strains stratified by source (human and broilers) and by ciprofloxacin susceptibility status
Phylogenetic group | Ciprofloxacin susceptible strains, N = 16 | Ciprofloxacin resistant isolates N = 137 | ||||
|---|---|---|---|---|---|---|
ST131 (n = 6) n (%) | Non-ST131 (n = 0) | Broilers (n = 10) n (%) | ST131 (n = 63) n (%) | Non-ST131 (n = 56) n (%) | Broilers (n = 18) n (%) | |
A | – | – | 2 (20) | – | 15 (26.8) | 9 (50) |
B1 | – | – | 2 (20) | – | 3 (5.4) | 1 (5.6) |
B2 | 6 (100) | – | 4 (40) | 62 (98.4) | 13 (23.2) | 0 |
C | – | – | 0 | – | 5 (8.9) | 1 (5.6) |
D | – | – | 1 (10) | – | 1 (1.8) | 0 |
E | – | – | 0 | – | 13 (23.2) | 7 (38.9) |
F | – | – | 1 (10) | 1 (1.6) | 6 (10.7) | 0 |