Table 2.
Salmonella isolate characterization by PFGE subtype, serotype, and antimicrobial susceptibility phenotype
| PFGE subtype | No. of isolates | No. of animals | Serotype | Antimicrobial susceptibilitya | No. of isolates of each sample type with each subtype |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| Mandibular | Mesenteric | Mediastinal | Subiliac | Fecal | Hide | |||||
| A | 11 | 8 | Kentucky | Pansusceptible | 1 | 2 | 0 | 1 | 5 | 2 |
| B | 1 | 1 | Kentucky | Pansusceptible | 0 | 0 | 0 | 1 | 0 | 0 |
| C | 14 | 9 | Kentucky | Pansusceptible | 1 | 1 | 0 | 3 | 7 | 2 |
| D | 1 | 1 | Anatum | (F), (C), Su | 0 | 0 | 0 | 0 | 0 | 1 |
| E | 1 | 1 | Kentucky | Pansusceptible | 0 | 0 | 0 | 0 | 0 | 1 |
| F | 1 | 1 | Anatum | Am, Ap, F, Su, Te, TS | 1 | 0 | 0 | 0 | 0 | 0 |
| G | 21 | 13 | Anatum | Pansusceptible; Te | 8 | 1 | 0 | 4 | 3 | 5 |
| H | 2 | 2 | Anatum | Pansusceptible; S, Su, Te | 0 | 1 | 0 | 0 | 0 | 1 |
| I | 1 | 1 | Anatum | Am, NA, Su, Te, TS | 0 | 0 | 0 | 1 | 0 | 0 |
| J | 1 | 1 | Kentucky | Te | 0 | 1 | 0 | 0 | 0 | 0 |
| K | 2 | 1 | Nontypeable | Pansusceptible; Ap, Su, Te, TS | 0 | 1 | 0 | 0 | 1 | 0 |
| L | 2 | 2 | Nontypeable | Pansusceptible | 0 | 0 | 0 | 0 | 0 | 2 |
| M | 10 | 8 | Reading | Te | 5 | 1 | 0 | 2 | 1 | 1 |
| N | 2 | 2 | Reading | Te | 0 | 0 | 2 | 0 | 0 | 0 |
| O | 1 | 1 | Reading | Te | 0 | 1 | 0 | 0 | 0 | 0 |
| P | 1 | 1 | Reading | Te | 0 | 0 | 0 | 1 | 0 | 0 |
| Q | 1 | 1 | Give | S, Te | 0 | 1 | 0 | 0 | 0 | 0 |
| R | 1 | 1 | Kentucky | Pansusceptible | 0 | 1 | 0 | 0 | 0 | 0 |
| S | 1 | 1 | Mbandaka | Pansusceptible | 0 | 1 | 0 | 0 | 0 | 0 |
| T | 6 | 5 | Meleagridis | S, Su, Te; Su, Te | 0 | 4 | 0 | 2 | 0 | 0 |
| U | 2 | 2 | Meleagridis | S, Su, Te | 0 | 0 | 0 | 1 | 1 | 0 |
| V | 2 | 2 | Meleagridis | Pansusceptible | 1 | 0 | 0 | 1 | 0 | 0 |
| W | 1 | 1 | Meleagridis | Am, Ap, F, S, Su, Te | 0 | 1 | 0 | 0 | 0 | 0 |
| X | 4 | 3 | Cerro | Pansusceptible; (F), (Te) | 0 | 1 | 0 | 1 | 0 | 2 |
| Y | 1 | 1 | Muenster | NA | 1 | 0 | 0 | 0 | 0 | 0 |
a
Am, amoxicillin-clavulanic acid; Ap, ampicillin; F, cefoxitin; C, chloramphenicol; NA, nalidixic acid; S, streptomycin; Su, sulfisoxazole; Te, tetracycline; TS, trimethoprim-sulfamethoxazole. Parentheses indicate intermediate resistance.