Table 2 Resistance of erythromycin, telithromycin and cethromycin against S. aureus clinical isolates with erm genes or MLSB phenotypes

MRSA

 ermA(56)

56 (100.0%)

32 (57.1%)

29 (51.8%)

 ermB(46)

46 (100.0%)

43 (93.5%)

< 0.001^a

13 (28.3%)

0.016^a

 ermC(14)

13 (92.9%)

12 (85.7%)

0.048^b

3 (21.4%)

0.041^b

 cMLSB (104)

103 (99.0%)

84 (80.8%)

0.025^c

47 (45.2%)

< 0.001^c

 iMLSB (17)

17 (100.0%)

9 (52.9%)

0 (0.0%)

MSSA

 ermA(9)

8 (88.9%)

1 (11.1%)

0 (0.0%)

 ermB (42)

42 (100.0%)

37 (88.1%)

< 0.001^a

18 (42.9%)

0.019^a

 ermC (72)

71 (98.6%)

54 (75.0%)

< 0.001^b

27 (37.5%)

0.026^b

 cMLSB (55)

54 (98.2%)

49 (89.1%)

0.002^c

26 (47.3%)

0.036^c

 iMLSB (69)

68 (98.6%)

45 (65.2%)

20 (29.0%)