Table 4 Antimicrobial resistance profile of S. aureus isolates

I

β-Lactams

Ampicillin (10 µg)

12(80%)

32(71.11%)

27(69.23%)

5(71.43%)

1(100%)

2(100%)

5(62,5%)

7(70%)

Penicllin G (10 units)

13(86.67%)

41(91.11%)

35(89.74%°

7(100%)

1(100%)

2(100%)

6(75%)

8(80%)

Amoxicillin-clavulanic acid (30 µg)

6(40%)

18(40%)

13(33.33%)

2(28.57%)

0(0%)

0(0%)

3(37.5%)

3(30%)

Cefoxitin (30 µg)

5(33.33%)

12(26.67%)

3(7.69%)

0(0%)

0(0%)

0(0%)

2(25%)

1(10%)

Ceftazidime (30 µg)

2(13.33%)

8(17.78%)

3(7.69%)

1(14.29%)

0(0%)

0(0%)

0(0%)

0(0%)

Cefepime (30 µg)

4(26.67%)

7(15.56%)

3(7.69%)

1(14.29%)

0(0%)

0(0%)

1(12,5%)

1(10%)

II

Aminoglycosides

Kanamycin (30 µg)

8(53.33%)

33(73.33%)

22(56.41%)

4(57.14%)

0(0%)

0(0%)

4(50%)

5(50%)

Streptomycin (10 µg)

4(26.67%)

22(48.89%)

10(25.64%)

3(42.86%)

0(0%)

0(0%)

3(37,5%)

6(60%)

Amikacin (30 µg)

9(60%)

25(55.56%)

15(38.46%)

1(14.29%)

0(0%)

0(0%)

1(12,5%)

2(20%)

Gentamicin (10 µg)

11(73.33%)

31(68.89%)

27(69.23%)

4(57.14%)

0(0%)

1(50%)

5(62,5%)

3(30%)

III

Quinolones and fluoroquinolones

Norfloxacin (10 µg)

5(33.33%)

6(13.33%)

31(79.49%)

5(71.43%)

0(0%)

1(50%)

5(62.5%)

5(50%)

Ciprofloxacin (5 µg)

12(80%)

3(6.67%)

37(94.87%)

6(85.71%)

0(0%)

1(50%)

6(75%)

7(70%)

Quinupristin/dalfopristin (15 µg)

3(20%)

2(4.44%)

5(12.82%)

4(57.14%)

0(0%)

1(12,5%)

2(20%)

IV

Macrolides

Erythromycin (15 µg)

10(66.67%)

15(33.33%)

6(15.38%)

1(14.29%)

1(100%)

1(50%)

2(25%)

2(20%)

Telithromycin (15 µg)

9(20%)

4(10.26%)

1(14.29%)

0(0%)

1(50%)

1(12.5%)

1(10%)

V

Tetracyclines

Tetracycline (30 µg)

12(80%)

37(82.22%)

32(82.05%)

5(71.43%)

1(100%)

1(50%)

6(75%)

7(70%)

VI

Lincosamides

8(53.33%)

Clindamycin (2 µg)

4(26.67%)

15(33.33%)

14(35.9%)

2(28.57%)

0(0%)

0(0%)

3(37.5%)

3(30%)

VII

Phenicols

Chloramphenicol (30 µg)

4(26.67%)

12(26.67%)

12(30.77%)

2(28.57%)

0(0%)

0(0%)

2(25%)

0(0%)

VIII

Sulfonamides and synergistic agents

Trimethoprim-sulfamethoxazole (25 µg)

5(33.33%)

15(33.33%)

14(35.9%)

3(42.86%)

0(0%)

0(0%)

3(37.5%)

4(40%)

IX

Oxazolidinones

Linezolid (30 µg)

0(0%)

0(0%)

0

0(0%)

0(0%)

0(0%)

0(0%)

0(0%)

X

Glycopeptides

Vancomycin (MIC)

2(13.33%)

4(8.89%)

4(10.26%)

0(0%)

0(0%)

0(0%°

0(0%)

0(0%)

The others

Rifampicin (5 µg)

3(20%)

9(20%)

6(15.38%)

1(14.29%)

0(0%)

0(0%)

0(0%)

0(0%)

Fusidic acid (10 µg)

4(26.67%)

9(20%)

4(10.26%)

2(28.58%)

0(0%)

0(0%)

0(0%)

0(0%)

Fosfomycin (200 µg)

2(13.33%)

1(2.22%)

1(2.56%)

1(14.29%)

0(0%)

0(0%)

0(0%)

0(0%)

Pansusceptible

 ≥ 3 Antimicrobia

7(46.67%)

8(17.78%)

12(30.77%)

7(100%)

6

8

8(100%)

5(50%)

 ≥ 6 Antimicrobia

5(33.33%)

6(13.33%)

6(15.38%)

4(57.14%)

1(100%)

3

2(25%)

1(10%)

 ≥ 9 Antimicrobia

1(6.67%)

2(4.44%)

2(5.13%)

2(28.58%)

0(0%)

1

0(0%)

0(0%)