Table 3

Antimicrobial susceptibilities of USA300-HOU-MR and USA300-HOU-MS

Antibiotic

USA300-HOU-MR

USA300-HOU-MS

MIC

Phenotype

MIC

Phenotype


Bacitracin

>128

R

32

S

Cephalexin

128

R

4

S

Cefazolin

32

R

8

S

Cefotaxime

>128

R

2

S

Ciprofloxacin

0.5

S

0.25

S

Clarithromycin

64

R

<0.125

S

Clindamycin

0.06

S

0.06

S

Doxycycline

<0.125

S

<0.125

S

Erythromycin

64

R

<0.125

S

Gentamicin

1

S

1

S

Kanamycin

>128

R

4

S

Minocycline

<0.125

S

<0.125

S

Nourseothricin

8

S

4

S

Oxacillin

128

R

1

S

Penicillin

32

R

4

R

Rifampin

<0.004

S

<0.004

S

Tetracycline

<0.125

S

<0.125

S

Trimethoprim-Sulfamethoxazole

<0.03/0.06

S

0.06/0.125

S

Vancomycin

1

S

1

S


MIC, minimum inhibitory concentration, μg/ml

R, resistant; S, susceptible

Highlander et al. BMC Microbiology 2007 7:99   doi:10.1186/1471-2180-7-99

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