Table 4.
Mutations in fluoroquinolone resistance-determining genes of A. baumannii
| ID | ST | gyrA | parC | Ciprofloxacin | Nalidixic acid |
|---|---|---|---|---|---|
| 116 | 499/345 | T82S | — | resistant | intermediate |
| 123C | 499/345 | T82S | — | susceptible | intermediate |
| 309C | 499/345 | T82S | — | susceptible | susceptible |
| 43 | 625/860 | S81L | S84L | resistant | resistant |
| 432B | 625/860 | S81L | S84L | resistant | resistant |
| 49 | 374/1325 | — | — | susceptible | susceptible |
| 33 | 979/1848a | — | — | susceptible | susceptible |
| 363 | 1/405 | S81L | S84L | resistant | resistant |
| 423 | 1/405 | S81L | S84L | resistant | resistant |
| 518 | 1/405 | S81L | S84L | resistant | resistant |
| 558 | 1/405 | S81L | S84L | resistant | resistant |
| 28 | 2/848 | S81L | S84L | resistant | resistant |
| 164C | 1232a/1846a | — | — | susceptible | susceptible |
| 186 | 1233a/1847a | — | — | susceptible | resistant |
—, no relevant substitutions.
Mutations detected in fluoroquinolone resistance-determining regions in A. baumannii. Seven out of 14 A. baumannii isolates were found to possess the mutations S81L in gyrA and S84L in parC.
a
New STs identified in this study.