The bacterial strains used in this study are summarized in Table 1. Escherichia coli and A. baumannii were incubated in LB-Miller medium (10 g/l tryptone (Gibco, Detroit, MI), 5 g/l yeast extract (BD, Sparks, MD), 10 g/l sodium chloride (AppliChem, Darmstadt, Germany)). The remaining four species were incubated in THY broth (36.4 g/l Todd–Hewitt Broth (Oxoid, Basingstoke, UK), 5 g/l yeast extract (BD, Sparks, MD)).

Bacterial strains used in the study and their resistance pattern.

SpeciesStrainResistanceSource
E. coliBSU1286*ESBLClinical isolate, Ulm collection
S. aureusATCC43300MRSAATCC
K. pneumoniaeATCC700603ESBLATCC
A. baumanniiATCC19606–ATCC
P. aeruginosaATCC27853–ATCC
E. faeciumDSM17050VREDSMZ
P. aeruginosaBSU1295**–Clinical isolate, Ulm collection
P. aeruginosaBSU1296–Clinical isolate, Ulm collection
P. aeruginosaBSU1297–Clinical isolate, Ulm collection
P. aeruginosaBSU1298–Clinical isolate, Ulm collection
S. aureusDSM 26309–DSMZ
S. aureusATCC29213–ATCC
S. aureusATCC13565–ATCC
S. aureusATCC25923–ATCC

*26 (link); **55 (link).

Free full text: Click here