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Table 1 Minimal inhibitory concentrations (MICs) to macrolides for Mycoplasma pneumoniae strains

From: Radiologic findings as a determinant and no effect of macrolide resistance on clinical course of Mycoplasma pneumoniae pneumonia

Macrolides

MICs (μg/mL) for strains

With 23S rRNA transition (n = 36)

Without 23S rRNA transition (n = 23)

Range

MIC50

MIC90

Range

MIC50

MIC90

Azithromycin

1 ~ 64

8

16

0.001 ~ 0.001

0.001

0.001

Clarithromycin

8~ > 128

64

128

0.001 ~ 0.002

0.001

0.002

Erythromycin

2~ > 128

16

128

0.001 ~ 0.004

0.001

0.002

Roxithromycin

0.032 ~ 128

8

32

0.001 ~ 0.008

0.001

0.004

  1. MIC50 and MIC90 are MICs at which 50% and 90% of the isolates were inhibited by the antimicrobials, respectively