Antibiotic resistance profiles of Salmonella isolates. The antibiotic resistance profiles of Salmonella isolates are illustrated as a heat-map. The color of each cell represents the % of isolates resistant to the indicated antibiotic, as shown in the color legend on the right. Multidrug resistance (MDR∗) was defined as resistance to at least 3 antibiotic classes. Abbreviations: A, ampicillin; Amc, amoxicillin/clavulanic acid; An, amikacin; Caz, ceftazidime; Cf, cephalothin; Cip, ciprofloxacin; Ctx, cefotaxime; Cxm, cefuroxime; Cz, cefazolin; E, erythromycin; Fep, cefepime; Fox, cefoxitin; G, gentamicin; K, kanamycin; N, nalidixic acid; S, streptomycin; Sxt, trimethoprim/sulfamethoxazole; T, tetracycline.