“…DNA in supernatant was used as a template under standard PCR procedure [9] with a series of different sets of primers. Detection of the known acquired CHDLs (bla OxA-23, bla , and bla OxA-58 ) [14], class A extended-spectrum b-lactamases (bla PER , bla VEB , and bla GES ) [14,15], MBL (bla IMP , bla VIM , bla SIM , bla NDM ) [16,17] and the intrinsic bla OxA-51-like gene was performed as previously described [14].…”