BEL-2, an Extended-Spectrum β-Lactamase with Increased Activity toward Expanded-Spectrum Cephalosporins in Pseudomonas aeruginosa

BEL-2, an Extended-Spectrum β-Lactamase with Increased Activity toward Expanded-Spectrum Cephalosporins in Pseudomonas aeruginosa New Variant of CTX-M-Type Extended-Spectrum β-Lactamases, CTX-M-71, with a Gly238Cys Substitution in a K lebsiella pneumoniae Isolate from Bulgaria VIM-15 and VIM-16, Two New VIM-2-Like Metallo-β-Lactamases in Pseudomonas aeruginosa Isolates from Bulgaria and Germany Detection of the Novel Extended-Spectrum β-Lactamase OXA-161 from a Plasmid-Located Integron inPseudomonas aeruginosaClinical Isolates from Spain Biochemical Characterization of Metallo-β-Lactamase VIM-11 from a Pseudomonas aeruginosa Clinical Strain PER-6, an Extended-Spectrum β-Lactamase from Aeromonas allosaccharophila Nationwide Investigation of Extended-Spectrum β-Lactamases, Metallo-β-Lactamases, and Extended-Spectrum Oxacillinases Produced by Ceftazidime-Resistant Pseudomonas aeruginosa Strains in France Extended-Spectrum Cephalosporinase in Acinetobacter baumannii GES-13, a β-Lactamase Variant Possessing Lys-104 and Asn-170 in Pseudomonas aeruginosa Extended-Spectrum Cephalosporinases in Pseudomonas aeruginosa