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Table 3 Susceptibility profile of GBS isolates by E test (n = 128)

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

Antibiotic

MIC (µg/ml)

Range

50 % of isolates

90 % of isolates

Break pointa (susceptible)

% Of isolates resistant

Penicillin

0.002–32

0.012

0.047

≤0.12

–

Erythromycin

0.016–256

0.16

8

≤0.25

21.1

Clindamycin

0.016–256

0.16

8

≤0.25

17.2

  1. aCLSI guidelines 2012