Staphylococcus aureus ATCC 6538 ( Minimal bactericidal concentration ( MBC ) = 1.8 microM ), Staphylococcus aureus ATCC 12600 ( MBC = 1.8 microM ), Staphylococcus aureus ATCC 33593 (MRSA) ( MBC = 0.9 microM ), Staphylococcus aureus ATCC 43300 (MRSA) ( MBC = 0.9 microM ), Staphylococcus epidermidis ATCC 14990 ( MBC = 0.9-1.8 microM ), Streptococcus pyogenes ATCC 12344 ( MBC = 0.9-3.5 microM ), Streptococcus pneumoniae ATCC 33400 ( MBC >7 microM ), Enterococcus faecalis ATCC 29212 ( MBC =0.4-1.8 microM ), Enterococcus faecalis ATCC 51299 (VRE) ( MBC =3.5 microM ), Enterococcus faecium DSM 2146 ( MBC = 0.4 microM ), Enterococcus faecium clinical isolate (VRE) ( MBC = 0.4 microM ), Enterococcus faecium clinical isolate (VRE) ( MBC >7 microM ), Enterococcus faecium clinical isolate ( MBC = 0.4 microM ), Escherichia coli ATCC 25922 ( MBC = 0.2-0.9 microM ), Escherichia coli ATCC 35218 ( MBC = 0.2 microM ), Escherichia coli ATCC 11775 ( MBC = 0.4 microM ), Klebsiella pneumoniae ATCC 13882 ( MBC = 0.2-0.9 microM ), Klebsiella pneumoniae ATCC 13883 0.1-0.2 0.1 ( MBC = 0.1-0.2 microM ), Enterobacter cloacae ATCC 13047 ( MBC = 7 microM ), Serratia marcescens NCTC 10211 ( MBC >7 microM ), Citrobacter freundii NCTC 9750 ( MBC >7 microM ), Pseudomonas aeruginosa ATCC 10145 ( MBC = 0.4-0.9 microM ), Pseudomonas aeruginosa clinical isolate ( MBC = 0.2 microM ), Pseudomonas fluorescens NCTC 10038 >7.0 0.9-1.8 ( MBC >7 microM ), Burkholderia cepacia ATCC 25416 ( MBC >7 microM ), Acinetobacter baumannii ATCC 19606 ( MBC = 0.2 microM ), Candida albicans ATCC 24433 ( MBC = 1.8 microM )