Table 3.
Distribution of Pneumococcal Serotypes By Patient Age, Burkina Faso, 2016–2017
| <1 Year |
1 Year |
2 Years |
3–4 Years |
≥5 Years |
Total |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pneumococcal Serotype | N (%) | N (%) | N (%) | N (%) | N (%) | N (%) | ||||||
| PCV13 serotypes | 33 | (40) | 18 | (50) | 11 | (38) | 28 | (55) | 348 | (65) | 438 | (59) |
| 1 | 18 | (22) | 11 | (31) | 8 | (28) | 22 | (43) | 299 | (55) | 358 | (49) |
| 3 | 1 | (1) | 1 | (3) | 0 | (0) | 0 | (0) | 7 | (1) | 9 | (1) |
| 4 | 1 | (1) | 0 | (0) | 0 | (0) | 0 | (0) | 4 | (1) | 5 | (1) |
| 5 | 3 | (4) | 2 | (6) | 1 | (4) | 1 | (2) | 7 | (1) | 14 | (2) |
| 6A/6B | 3 | (4) | 2 | (6) | 0 | (0) | 1 | (2) | 5 | (1) | 11 | (1) |
| 7F/7A | 0 | (0) | 0 | (0) | 1 | (3) | 0 | (0) | 4 | (1) | 5 | (1) |
| 9V/9A | 0 | (0) | 0 | (0) | 0 | (0) | 0 | (0) | 1 | (0.2) | 1 | (0.1) |
| 14 | 1 | (1) | 0 | (0) | 0 | (0) | 0 | (0) | 7 | (1) | 8 | (1) |
| 18C/18F/18B/18A | 4 | (5) | 1 | (3) | 1 | (3) | 3 | (6) | 9 | (2) | 18 | (2) |
| 19A | 0 | (0) | 0 | (0) | 0 | (0) | 0 | (0) | 0 | (0) | 0 | (0) |
| 19F | 0 | (0) | 0 | (0) | 0 | (0) | 0 | (0) | 0 | (0) | 0 | (0) |
| 23F | 2 | (2) | 1 | (3) | 0 | (0) | 1 | (2) | 5 | (1) | 9 | (1) |
| Non-PCV13 serotypes | 18 | (22) | 8 | (22) | 6 | (21) | 4 | (8) | 66 | (12) | 102 | (14) |
| 2 | 6 | (7) | 0 | (0) | 0 | (0) | 0 | (0) | 4 | (1) | 10 | (1) |
| 8 | 0 | (0) | 0 | (0) | 0 | (0) | 0 | (0) | 1 | (0.2) | 1 | (0.1) |
| 9N/9L | 0 | (0) | 0 | (0) | 0 | (0) | 0 | (0) | 1 | (0.2) | 1 | (0.1) |
| 10A | 0 | (0) | 0 | (0) | 1 | (3) | 0 | (0) | 2 | (0.4) | 3 | (0.4) |
| 10F/10C/33C | 1 | (1) | 0 | (0) | 0 | (0) | 0 | (0) | 0 | (0) | 1 | (0.1) |
| 12F/12A/12B/44/46 | 8 | (10) | 7 | (19) | 5 | (17) | 4 | (8) | 55 | (10) | 79 | (11) |
| 13 | 1 | (1) | 0 | (0) | 0 | (0) | 0 | (0) | 0 | (0) | 0 | (0.1) |
| 16F | 0 | (0) | 0 | (0) | 0 | (0) | 0 | (0) | 1 | (0.2) | 1 | (0.1) |
| 22F/22A | 1 | (1) | 0 | (0) | 0 | (0) | 0 | (0) | 0 | (0) | 1 | (0.1) |
| 25F/25A/38 | 0 | (0) | 1 | (3) | 0 | (0) | 0 | (0) | 1 | (0.2) | 2 | (0.3) |
| 34 | 1 | (1) | 0 | (0) | 0 | (0) | 0 | (0) | 0 | (0) | 1 | (0.1) |
| 35B | 0 | (0) | 0 | (0) | 0 | (0) | 0 | (0) | 1 | (0.2) | 1 | (0.1) |
| Nontypeable specimens | 32 | (39) | 10 | (28) | 12 | (41) | 19 | (37) | 126 | (23) | 199 | (27) |
| Total serotyped | 83 | (74) | 36 | (78) | 29 | (88) | 51 | (69) | 540 | (83) | 739 | (81) |
| Missing serotypea | 29 | (26) | 10 | (22) | 4 | (12) | 23 | (31) | 112 | (17) | 178 | (19) |
| Total | 112 | 46 | 33 | 74 | 652 | 917 | ||||||
Abbreviations: CSF, cerebrospinal fluid; PCR, polymerase chain reaction.
a
Fifty-one cases were only positive via latex and could not be serotyped: 25 from 2016 and 26 from 2017 Serotype results were unavailable for 127 culture- and/or PCR-positive cases: 98 from 2016 and 29 from 2017