Metallo-β-lactamase producing Pseudomonas aeruginosa strains isolated in hospitals in Recife, PE, Brazil

Abstract

Out of 24 nosocomial strains of Pseudomonas aeruginosa from Recife, Brazil, 15 (62%) were metallo-β-lactamase producers. Such isolates were resistant to main antipseudomonas drugs, except polymixyn B and aztreonam. The enzyme responsible for the carbapenem-resistance belongs to SPM-1 class, and the gene involved, blaspm-1, is likely plasmid located.