Identification of a CTX-M-255 β-lactamase containing a G239S substitution selectively conferring resistance to penicillin/β-lactamase inhibitor combinations

M R Andreasen, T Rick, N R Alexandersen, K H Hansen, M S Pedersen, J K Warweitzky, C M Botelho, S Häussler, L Jelsbak, K Schønning