Skip to main content

Advertisement

Table 4 Minimum inhibitory concentrations of erythromycin and clindamycin resistant isolates, D-shape and screened genes (n = 29)

From: Antibiotic resistance of Streptococcus agalactiae isolated from pregnant women in Garankuwa, South Africa

No MIC (µg/ml) D-shape MLS Genes
Erythromycin Clindamycin
1 1 (R) 0.50 (I) Negative cMLSB ermB
2 3 (R) 0.75 (I) Negative cMLSB linB + ermB
3 0.75 (I) 0.75 (I) Negative cMLSB linB + ermB
4 0.50 (I) 0.047 (S) Negative M phenotype mefA
5 0.75 (I) 1 (R) Negative cMLSB ermB
6 4 (R) 0.50 (I) Negative cMLSB ermB
7 1 (R) 0.38 (I) Negative cMLSB ermB
8 0.75 (I) 1 (R) Negative cMLSB ermB
9 0.75 (I) 4 (R) Negative cMLSB linB + ermB
10 4 (R) 7 (R) Negative cMLSB ermB
11 2 (R) 0.047 (S) Positive iMLSB ermTR
12 1.5 (R) 0.016 (S) Positive iMLSB ermB
13 0.75 (I) 0.50 (I) Negative cMLSB linB + ermB
14 8 (R) 0.38 (I) Negative cMLSB ermB
15 0.25 (S) 2 (R) Negative L phenotype linB + ermB
16 8 (R) 1 (R) Negative cMLSB linB + ermB
17 0.75 (I) 1 (R) Negative cMLSB ermB
18 3 (R) 0.38 (I) Negative cMLSB ermB
19 1 (R) 0.38 (I) Negative cMLSB ermB
20 1.5 (R) 0.25 (S) Positive iMLSB ermB
21 0.25 (S) 1 (R) Negative L phenotype linB + ermB
22 3 (R) 0.047 (S) Positive iMLSB ermB
23 0.50 (I) 0.75 (I) Negative cMLSB linB + ermB
24 2 (R) 8 (R) Negative cMLSB ermB
25 0.75 (I) 0.50 (I) Negative cMLSB linB + ermB
26 0.75 (I) 0.094 (S) Negative M phenotype ermB
27 4 (R) 0.023 (S) Positive iMLSB ermB
28 0.50 (I) 1 (R) Negative cMLSB linB + ermB
29 0.75 (I) 0.50 (I) Negative cMLSB linB + ermB
  1. S susceptible, R resistant, I intermediate, cMLS B MLSB-constitutive methylation [erythro (R), clinda (R)], iMLS B MLSB-inducible methylation [erythro (R), clinda (S) with blunting], M-phenotype efflux pump mechanism [erythro (R), clinda (S) without blunting], L-phenotype erythro (S), clinda (R)