Table 4: In vitro activity of several antimicrobial agents against PMQR producing urinary isolates.

Drug PMQR-negative bacterial strains PMQR-positive bacterial strains
Total number n (%) QnrA
(n=4)
QepA
(n=5)
AAC(6')-Ib-cr (n=3)
Ampicillin 16/42
(38.1%)
0/12
(0%)
0% 0% 0%
Amoxicillin/clavulanate 31/42
(73.8%)
4/12
(33.3%)
0% 2/5
(40%)
2/3
(66.7%)
Cefotaxime 32/42
(76.2%)
6/12
(50%)
1/4
(25%)
3/5
(60%)
2/3
(66.7%)
Ceftriaxone 34/42
(81%)
5/12
(41.7%)
1/4
(25%)
3/5
(60%)
1/3
(33.3%)
Cefepime 40/42
(95.2%)
6/12
(50%)
1/4
(25%)
3/5
(60%)
2/3
(66.7%)
Ciprofloxacin 38/42
(90.5%)
4/12
(33.3%)
1/4
(25%)
3/5
(60%)
0%
Levofloxacin 40/42
(95.2%)
5/12
(41.7%)
1/4
(25%)
3/5
(60%)
1/3
(33.3%)
Co-trimoxazole 38/42
(90.5%)
8/12
(66.7%)
1/4
(25%)
5/5
(100%)
2/3
(66.7%)
Nitroxolinum 42/42
(100%)
7/12
(58.3%)
0% 5/5
(100%)
2/3
(66.7%)
Furazidinum 42/42
(100%)
5/12
(41.7%)
0% 5/5
(100%)
0%
Amikacin 36/42
(85.7%)
5/12
(41.7%)
1/4
(25%)
2/5
(40%)
2/3
(66.7%)
Gentamicin 35/42
(83.3%)
6/12
(50%)
1/4
(25%)
3/5
(60%)
2/3
(66.7%)
Nitrofurantoin 42/42
(100%)
6/12
(50%)
0% 5/5
(100%)
1/3
(33.3%)
Meropenem 42/42
(100%)
12/12
(100%)
100% 100% 100%
Fosfomycin 39/42
(92.9%)
6/12
(50%)
0% 4/5
(80%)
2/3
(66.7%)