Research Article
Colistin Resistance in Escherichia coli and Salmonella enterica Strains Isolated from Swine in Brazil
Table 3
Distribution of colistin resistant strains among different Salmonella enterica serotypes isolated from swine.
| Serotype | Strains | Number of resistant strains | No (%) | Agar dilution test | Disk diffusion test |
| S. Typhimurium | 81 (65.3) | 12 | 2 | S. London | 13 (10.5) | 6 | 0 | S. Anatum | 11 (8.9) | 3 | 0 | S. enterica subsp. enterica (O:4,5:-:1,2) | 8 (6.5) | 4 | 3 | S. Choleraesuis | 7 (5.6) | 0 | 0 | S. Infantis | 3 (2.4) | 0 | 0 | S. Bredeney | 1 (0.8) | 1 | 0 |
| Total | 124 | 26 | 5 |
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