Table 1.
Initial and true (final) lytA-positive samples per serotypes/serogroup after subtraction of false positivity (bold).
| Serotypes/serogroup | Rate of positivity initially revealed in lytA-positive samples (%) | Rate of false positivity revealed in lytA-negative samples that had to be subtracted (%) | Rate of true positivity (%) |
|---|---|---|---|
| 1 | 1.5 | 0.0 | 1.5 |
| 2 | 0.8 | 0.0 | 0.8 |
| 3 | 4.2 | 0.0 | 4.2 |
| 6A/B/C/D | 1.4 | 0.0 | 1.4 |
| 7A/F | 0.0 | 0.0 | 0.0 |
| 8 | 0.5 | 0.0 | 0.5 |
| 9A/L/N/V | 2.5 | 0.0 | 2.5 |
| 10A/B | 4.1 | 0.0 | 4.1 |
| 12A/B/F/44/46 | 1.5 | 0.0 | 1.5 |
| 13 | 0.0 | 0.0 | 0.0 |
| 14 | 0.0 | 0.0 | 0.0 |
| 16F | 1.2 | 0.0 | 1.2 |
| 17F | 0.5 | 0.0 | 0.5 |
| 19A | 4.4 | 0.0 | 4.4 |
| 19F | 3.1 | 0.0 | 3.1 |
| 20 | 1.7 | 0.0 | 1.7 |
| 21 | 5.9 | 0.0 | 5.9 |
| 22A/F | 3.4 | 0.0 | 3.4 |
| 23A | 6.6 | 0.0 | 6.6 |
| 23B | 11.0 | 0.0 | 11.0 |
| 23F | 0.0 | 0.0 | 0.0 |
| 29 | 0.0 | 0.0 | 0.0 |
| 33F | 3.1 | 0.0 | 3.1 |
| 35B/D | 4.8 | 0.0 | 4.8 |
| 35F/37 | 7.3 | 0.0 | 7.3 |
| 38/25A/F | 4.6 | 0.0 | 4.6 |
| 7B/C | 3.6 | 1.0 | 2.6 |
| 11A/D/E | 14.4 | 3.0 | 11.4 |
| 15A/B/C/F | 14.8 | 1.0 | 13.8 |
| 31 | 4.8 | 1.0 | 3.8 |