FIG 4.

Resistance of S. enterica against β-lactam antibiotics. Heat map of the resistance patterns of Salmonella isolates resistant against third-generation cephalosporins and indicator carbapenems, based on (double) disk diffusion tests and according to EUCAST guidelines. Red and orange indicate full and intermediate resistance, respectively. For each isolate, the sample identifier (Id.), Salmonella serotype, and identified ESBL alleles are shown. AB, antibiotic; CLA, clavulanic acid (10 μg); Fox, cefoxitin, MEM, meropenem.