Genotypically Different Clones of Staphylococcus aureus Are Diverse in the Antimicrobial Susceptibility Patterns and Biofilm Formations

Table 3

In vitro MICs comparing activities of five antimicrobial agents against 30 MSSA and 30 MRSA different isolates isolated from a clinical setting in largest Malaysian public hospital.

Organism tested (no. of isolates) and antibiotic agent	MIC (μg/mL)			% Susceptibility
	Range	50%	90%	S	R
MSSA (30)
Vancomycin	0.31–1.75	0.62	0.87	100	0
Linezolid	0.62–1.25	0.87	0.87	100	0
Tigecycline	0.07-0.07	0.07	0.07	100	0
Daptomycin	0.10–0.87	0.22	0.44	100	0
Amox./clav.	0.03–1.25	0.62	1.25	100	0
MRSA (30)
Vancomycin	0.44–1.75	0.87	1.25	100	0
Linezolid	0.22–1.75	0.87	0.87	100	0
Tigecycline	0.07–1.25	0.22	0.22	73.33	26.66
Daptomycin	0.15–0.87	0.31	0.87	100	0
Amox./clav.	0.44–16	12	12	36.66	63.33

Amox./clav: amoxicillin/clavulanic acid; S: sensitive; R: resistant; MIC: minimum inhibition concentration; MSSA: methicillin-susceptible S. aureus; MRSA: methicillin-resistant S. aureus.