TABLE 1.
Strain | Serotype | PFGE type | PEN MIC (μg/ml) | Susceptibility or resistance
|
SmaI hybridization pattern (kb)
|
|||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
ERY | TET | CMP | SXT | ermB | mef | tetM | cat | lytAb | ||||
OH 4 | 6 | 9 | 2 | R | S | S | R | — | 225 | — | — | 100/60 |
OH 11 | 6 | 9 | 2 | R | S | S | R | — | 225 | — | — | 100/60 |
OH 12 | 6 | 9 | 2 | R | S | S | R | — | 225 | — | — | 100/60 |
OH 13 | 6 | 9 | 2 | R | S | S | R | — | 225 | — | — | 100/60 |
CA 14 | 19 | 3 | 2 | R | R | S | I | — | 115 | 115 | — | 115 |
TX 4 | 19 | 3 | 2 | R | R | S | R | — | 115 | 115 | — | 115 |
CA 37 | 19 | 3 (2) | 3 | R | R | S | R | — | 115 | 115 | — | 115 |
CA 40 | 19 | 3 (2) | 2 | R | R | S | R | — | 115 | 115 | — | 115 |
TX 8 | 19 | 3 (3) | 2 | R | R | S | I | — | 115 | 115 | — | 115 |
CA 45 | 23 | 5 (3) | 1.5 | S | S | S | I | — | — | — | — | 260/85/70 |
CA 8 | 23 | 5 (2) | 2 | S | S | S | R | — | — | — | — | 260/85/70 |
KS 11 | 23 | 5 | 4 | S | S | S | R | — | — | — | — | 260/85 |
KY 15 | 23 | 5 | 6 | S | S | S | I | — | — | — | — | 260/85 |
KY 4 | 23 | 5 | 2 | S | S | S | I | — | — | — | — | 260/85 |
TX 5 | 14 | 16 | 6 | R | R | S | R | 390 | — | 390 | — | 95/40 |
GA 30 | NT | 16 | 8 | R | R | S | R | 390 | — | 390 | — | 95/40 |
KS 10 | 14 | 16 (2) | 6 | R | R | S | R | 390 | — | 390 | — | 95/70 |
TN 13 | 14 | 16 (2) | 3 | R | R | S | R | 390 | — | 390 | — | 95/70 |
SW 224 | 9 | B (6) | 1 | S | S | S | R | ND | ND | ND | ND | 260/130 |
SW 225 | 9 | B (6) | 1 | S | S | S | R | ND | ND | ND | ND | 260/130 |
SW 226 | 9 | B | 1 | S | S | S | R | ND | ND | ND | ND | 260/95 |
SW 228 | 9 | B | 1 | S | S | S | R | ND | ND | ND | ND | 260/95 |
HIM 76 | 23 | A | 2 | R | R | R | R | ND | ND | 390 | ND | 90/30 |
COL 252 | 23 | A (3) | 2 | S | R | R | I | ND | ND | 390 | ND | (175)/90/30 |
GA 38 | 23 | A (2) | 2 | R | R | R | R | 390 | — | 390 | 390 | (180)/90/30 |
TX 16 | 23 | A (2) | 2 | R | R | R | R | 390 | — | 390 | 390 | (180)/90/30 |
AL 4 | 23 | A | 1.5 | R | R | R | R | 390 | — | 390 | 390 | 90/30 |
TN 3 | 23 | A (2) | 1.5 | R | R | R | I | 390 | — | 390 | 390 | (180)/90/30 |
Ark 3 | 23 | A (2) | 3 | R | R | R | R | 390 | — | 390 | 390 | (180)/90/30 |
FL 4 | 23 | A (2) | 4 | R | R | R | I | — | 390 | 390 | 390 | (180)/90/30 |
CA 2 | 23 | A (3) | 2 | R | R | R | R | — | 390 | 390 | 390 | (175)/90/30 |
NY 11 | 23 | A | 2 | R | R | R | R | — | 390 | 390 | 390 | 90/30 |
KS 4 | 23 | A (3) | 3 | R | R | R | R | — | 390 | 390 | 390 | (175)/90/30 |
CMN 38 | 9A | B (4) | 2 | S | S | S | R | ND | ND | ND | ND | 260/95 |
Col 189 | 9V | B | 2 | S | S | S | R | ND | ND | ND | ND | 260/95 |
UR 219 | 14 | B | 2 | S | S | S | R | ND | ND | ND | ND | 260/95 |
CA 24 | 9 | B (3) | 2 | S | S | S | R | — | — | — | — | 260/95 |
CA 52 | 9 | B (2) | 1.5 | S | S | S | R | — | — | — | — | 260/95 |
TX 9 | 9 | B | 1.5 | S | S | S | R | — | — | — | — | 260/95 |
TX 14 | 9 | B | 3 | S | S | S | R | — | — | — | — | 260/95 |
FL 17 | 9 | B (2) | 3 | S | S | S | R | — | — | — | — | 260/95 |
GA 13 | 9 | B | 1.5 | S | S | S | R | — | — | — | — | 260/95 |
OH 20 | 9 | B (5) | 1.5 | S | S | S | R | — | — | — | — | 260/95 |
TN 16 | 9 | B | 1.5 | S | S | S | R | — | — | — | — | 260/95 |
Strain numbers and PFGE assignments are as in references 4 and 18. —, no hybridization signal. Abbreviations: PEN, penicillin; ERY, erythromycin; TET, tetracycline; CMP, chloramphenicol; SXT, trimethoprim-sulfamethoxazole; NT, nontypeable; ND, not done; S, susceptible; R, resistant; I, intermediate.
Numbers in parentheses refer to unstable bands.