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Table 2 Minimum bactericidal concentrations (MBCs) of antibiotics in planktonic S. aureus, low biofilm-forming CYL1135, and high biofilm-forming CYL1106 strains

From: Antibiotic susceptibility of Staphylococcus aureus with different degrees of biofilm formation

Antimicrobial agents

MBC (μg ml−1)

Planktonic

CYL1135

CYL1106

Penicillins

 Bacampicillin

0.25

8

16

 Amoxicillin-clavulanate

0.5

16

64

 Ampicillin-sulbactam

1

64

64

Quinolones

 Ciprofloxacin

0.125

4

4

 Norfloxacin

0.5

1

16

 Moxifloxacin

0.06

0.125

0.5

Cephalosporins

 Cefaclor

1

128

512

 Cefotaxime

0.5

32

64

 Ceftriaxone

2

128

128

Aminoglycosides

 Amikacin

2

16

16

 Kanamycin

1

16

64

 Tobramycin

0.5

4

4

Glycopeptides

 Teicoplanin

0.125

2

4

 Vancomycin

0.5

4

16

Others

 Erythromycin

0.25

4

8

 Fosfomycin

16

128

1024

 Quinupristin–dalfopristin

0.125

0.5

1