Emergence of Metallo-β-lactamases in Enterobacteriaceaefrom Argentina

Carbapenem susceptibility in Enterobacteriaceae (M9921, M9959) revealed the presence of MBLs blaVIM-2 (M9959) and blaIMP-8 (M9921), both as first cassettes of class-1-integrons. ESBL blaPER-2 was detected in both strains and M9921 also harboured qnrB10, aac(6′)-Ib and aac(6′)-Ib-cr. This is the first report of MBLs in Enterobacteriaceae from Argentina.