TABLE 4.
Comparison of the proportion of Streptococcus pneumoniae cases by serotype between viable/nonviable isolates and culture-negative clinical specimens received as part of invasive pneumococcal disease surveillance, South Africa, 2010-2012
| Serotype | No. (%) of samples that were: |
P | |
|---|---|---|---|
| Viablea/nonviableb isolates (n = 8,146) | Culture-negative clinical specimensb (n = 138) | ||
| 1 | 1,146 (14) | 23 (17) | 0.46 |
| 4 | 462 (6) | 12 (9) | 0.18 |
| 6A/B | 914 (11) | 15 (11) | 0.90 |
| 8 | 326 (4) | 6 (4) | 0.84 |
| 12A/B/F | 486 (6) | 12 (9) | 0.25 |
| 14 | 333 (4) | 4 (3) | 0.63 |
| 15A/B/C/F | 296 (4) | 7 (5) | 0.51 |
| 18A/B/C | 177 (2) | 6 (4) | 0.15 |
| 19A | 868 (11) | 7 (5) | 0.05 |
| 23F | 466 (6) | 5 (4) | 0.38 |
| Other | 2,672 (33) | 41 (30) | 0.50 |
a
Serotype determined by the Quellung reaction. Individual serotypes were grouped according to the PCR assay for comparative purposes.
b
Serotype determined by the real-time PCR assay.