An Association of Genotypes and Antimicrobial Resistance Patterns among Salmonella Isolates from Pigs and Humans in Taiwan
Figure 1
Dendrogram constructed using the PFGE patterns of 110 Salmonella enterica isolates from pigs and the corresponding antimicrobial susceptibility patterns to the 12 indicated antimicrobials.
The dendrogram was constructed using the unweighted pair group method with an arithmetic mean algorithm. The antimicrobials shown in the sequence are cefotaxime (FTX), ceftazidime (CAZ), imipenem (IMP), nalidixic acid (NAL), ciprofloxacin (CIP), gentamicin (GEN), ampicillin (AMP), chloramphenicol (CHL), streptomycin (STR), sulfamethoxazole (SUL), tetracycline (TCY), and trimethoprim/sulfamethoxazole (SXT). “Resistance” is indicated by a red rectangle, “intermediate resistance” by a yellow rectangle, and “susceptibility” by a green rectangle. PFGE patterns shared by Salmonella isolates from human and pig are marked by blue squares. S. Typhimurium isolates are indicated with the clusters A, C, G and F, which were designated in a previous study [10].