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. 2016 Sep 20;72(1):115–127. doi: 10.1093/jac/dkw381

Table 2.

AMP-resistant S. aureus display increased resistance to clinically prescribed antibiotics

Strain no. Cycled with Peptidoglycan synthesis inhibitors/clinical breakpointa (mg/L)
Detergent-like peptide antibiotics/clinical breakpointa (mg/L)
Protein synthesis inhibitors/clinical breakpointa (mg/L)
Folate synthesis inhibitors/clinical breakpointa (mg/L) RNA synthesis inhibitor/clinical breakpointa (mg/L)
VAN
TEC
CFT
DAP
PMB
GEN
CHL
CLI
ERY
LZD
TGC
TET
DOX
SXT
RIF
R >2 R > 2 R > 1 R > 1 ND R > 1 R > 8 R > 0.5 R > 2 R > 4 R > 0.5 R > 2 R > 2 R > 4 R > 0.5
MIC (mg/L)b
DA28823 WT 1.5 0.5 0.25 0.094 96 0.125 4 0.094 0.19 2 0.094 0.094 0.19 0.094 0.012
DA30560 no peptide 1.5 0.5 0.25 0.094 64 0.125 4 0.094 0.19 2 0.094 0.094 0.19 0.094 0.012
DA29677 LL-37 2 1.5 0.19 0.75 96 0.094 6 0.047 0.19 1.5 0.094 0.19 0.125 0.047 0.008
DA29680 LL-37 2 2 0.25 0.19 96 0.094 4 0.094 0.19 1.5 0.19 0.25 0.094 0.064 0.012
DA30557 WGH 2 1 0.38 0.19 192 1 4 0.064 0.125 2 0.094 0.25 0.094 0.064 0.012
DA30559 WGH 1.5 1.5 0.38 0.19 192 0.38 4 0.064 0.125 1 0.094 0.19 0.125 0.094 0.016
DA36424 LL-37 and WGH 2 1.5 0.38 0.38 96 0.19 4 0.125 0.25 2 0.19 0.25 0.25 0.094 0.012
DA35920 PR-39 2 2 0.19 1 128 0.25 3 0.094 0.38 1 0.125 0.125 0.094 0.094 0.016
DA37296 PR-39 2 1.5 0.25 0.38 384 0.5 6 0.125 0.38 2 0.125 0.19 0.125 0.064 0.008

VAN, vancomycin; TEC, teicoplanin; CFT, ceftaroline; DAP, daptomycin; PMB, polymyxin B; GEN, gentamicin; CHL, chloramphenicol; CLI, clindamycin; ERY, erythromycin; LZD, linezolid; TET, tetracycline; TGC, tigecycline; DOX, doxycycline; SXT, trimethoprim/sulfamethoxazole; RIF, rifampicin.

Light grey, 2–5-fold MIC increase; dark grey, >5-fold MIC increase.

aDerived from EUCAST Clinical Breakpoint Table v. 5.0, valid from 1 January 2015 for Staphylococcus spp. (R, resistant; ND, no value determined).