TABLE 1.
Distributions of VGS and Gemella sp. strains according to macrolide resistance phenotypes and genotypes
| Bacterium | Total no. of isolates | No. (%) of M-phenotype isolatesa | cMLSB-phenotype isolatesb
|
iMLSB-phenotype isolatesb
|
||
|---|---|---|---|---|---|---|
| No. (%) of isolates | No. with mef(A/E) | No. (%) of isolates | No. with mef(A/E) | |||
| VGS | 164 | 97 (59.15) | 50 (30.49) | 24 | 17 (10.37) | 10 |
| S. mitis | 125 | 76 (60.80) | 35 (28.00) | 15 | 14 (11.20) | 8 |
| S. oralis | 28 | 28 (46.43) | 13 (46.43) | 8 | 2 (7.14) | 1 |
| S. sanguinis | 7 | 7 (100.00) | ||||
| S. salivarius | 3 | 1 (33.33) | 1 (33.33) | 1 | 1 (33.33) | 1 |
| S. anginosus | 1 | 1 (100.00) | ||||
| Gemella spp. | 28 | 17 (60.71) | 9 (32.14) | 3 | 2 (7.14) | |
| G. haemolysans | 12 | 9 (75.00) | 3 (25.00) | 2 | ||
| G. morbillorum | 16 | 8 (50.00) | 6 (37.50) | 1 | 2 (12.50) | |
a
All strains with the M phenotype harbored the mef(A/E) gene.
b
All strains with the cMLSB or iMLSB phenotype harbored the erm(B) gene.