TABLE 1.
Frequency distribution of S. agalactiae isolates among EcoRI ribotypes, hylB allelic types, and sodA allelic types
| Subtype | Incidence (prevalence [%]) among indicated type of isolates
|
P valuea | |
|---|---|---|---|
| Human (n = 52) | Bovine (n = 52) | ||
| EcoRI ribotype | |||
| 106-1501-S-8 | 39 (75.0) | 1 (1.9) | <0.01 |
| 116-549-S-1 | 7 (13.5) | 3 (5.8) | 0.50 |
| 106-1501-S-5 | 4 (7.7) | 12 (23.1) | 0.01 |
| 116-611-S-7 | 2 (3.8) | 3 (5.8) | 0.65 |
| 106-1502-S-6 | 0 | 9 (17.3) | <0.01 |
| 106-1502-S-2 | 0 | 6 (11.5) | 0.01 |
| 106-1502-S-3 | 0 | 4 (7.7) | 0.03 |
| 106-1504-S-1 | 0 | 3 (5.8) | 0.08 |
| 116-522-S-1 | 0 | 2 (3.8) | NA |
| 106-1501-S-4 | 0 | 2 (3.8) | NA |
| 116-549-S-7 | 0 | 1 (1.9) | NA |
| 116-574-S-2 | 0 | 1 (1.9) | NA |
| 116-607-S-6 | 0 | 1 (1.9) | NA |
| 116-622-S-8 | 0 | 1 (1.9) | NA |
| 116-638-S-1 | 0 | 1 (1.9) | NA |
| 116-646-S-2 | 0 | 1 (1.9) | NA |
| 106-1502-S-1 | 0 | 1 (1.9) | NA |
| hylB clusters and allelic typesb | |||
| hyl-1 cluster | 0 | 31 (59.6) | <0.01 |
| hyl-1.0 | 0 | 24 (46.2) | |
| hyl-1.1 | 0 | 5 (9.6) | |
| hyl-1.2 | 0 | 1 (1.9) | |
| hyl-1.3 | 0 | 1 (1.9) | |
| hyl-2 cluster (hyl-2.0) | 2 (3.8) | 0 | 0.50 |
| hyl-3 cluster (hyl-3.0) | 7 (13.5) | 0 | 0.01 |
| hyl-4 cluster (hyl-4.0) | 26 (50.0) | 1 (1.9) | <0.01 |
| hyl-5 cluster | 0 | 17 (32.6) | <0.01 |
| hyl-5.0 | 0 | 13 (25.0) | |
| hyl-5.1 | 0 | 1 (1.9) | |
| hyl-5.2 | 0 | 1 (1.9) | |
| hyl-5.3 | 0 | 1 (1.9) | |
| hyl-5.4 | 0 | 1 (1.9) | |
| hyl-6 cluster | 9 (17.3) | 3 (5.7) | 0.12 |
| hyl-6.0 | 7 (13.5) | 2 (3.8) | |
| hyl-6.1 | 2 (3.8) | 0 | |
| hyl-6.2 | 0 | 1 (1.9) | |
| hyl-7 cluster | 8 (15.4) | 0 | 0.01 |
| hyl-7.0 | 7 (13.5) | 0 | |
| hyl-7.1 | 1 (1.9) | 0 | |
| sodA clusters and allelic typesb | |||
| sod-1 cluster | 41 (78.8) | 5 (9.6) | <0.01 |
| sod-1.0 | 40 (76.9) | 4 (7.7) | |
| sod-1.1 | 1 (1.9) | 0 | |
| sod-1.2 | 0 | 1 (1.9) | |
| sod-2 cluster (sod-2.0) | 3 (5.8) | 0 | 0.24 |
| sod-3 cluster (sod-3.0) | 6 (11.5) | 0 | 0.03 |
| sod-4 cluster | 2 (3.8) | 47 (90.4) | <0.01 |
| sod-4.0 | 2 (3.8) | 46 (88.5) | |
| sod-4.1 | 0 | 1 (1.9) | |
a
All P values (between human and bovine isolates) were computed using a two-tailed Fisher's exact test. NA, Fisher's exact test was not applicable.
b
P values were computed for hylB and sodA clusters only (e.g., hyl-1, hyl-2, sod-1, or sod-2).