Volume 14, Number 2—February 2008
Research
Streptococcus pneumoniae Serotype 19A in Children, South Korea
Eun Hwa Choi*†, So Hee Kim*, Byung Wook Eun*, Sun Jung Kim†, Nam Hee Kim‡, Hoan Jong Lee*¶
, and Jina Lee§
, and Jina Lee§ Table 1
Distributions of serotypes among 538 isolates from children in South Korea, by age group, 1991–2006*
| Serotype | No. (%) invasive isolates† |
No. (%) noninvasive isolates† |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| <24 mo | 24–59 mo | >60 mo | Total | <24 mo | 24–59 mo | >60 mo | Total | ||
| PCV7 serotypes | 44 (67) | 28 (68) | 24 (47) | 96 (61) | 113 (65) | 81 (71) | 42 (45) | 236 (62) | |
| 19F | 8 (12) | 6 (15) | 4 (8) | 18 (11) | 50 (29) | 33 (29) | 12 (13) | 95 (25) | |
| 23F | 16 (24) | 6 (15) | 4 (8) | 26 (16) | 32 (18) | 20 (18) | 18 (19) | 70 (18) | |
| 6B | 8 (12) | 3 (7) | 7 (14) | 18 (11) | 19 (11) | 10 (9) | 3 (3) | 32 (8) | |
| 14 | 7 (11) | 10 (24) | 5 (10) | 22 (14) | 8 (5) | 7 (6) | 3 (3) | 18 (5) | |
| 9V | 4 (6) | 3 (7) | 3 (6) | 10 (6) | 4 (2) | 8 (7) | 2 (2) | 14 (4) | |
| 4 | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 2 (2) | 4 (4) | 6 (2) | |
| 18C |
1 (2) |
0 (0) |
1 (2) |
2 (1) |
0 (0) |
1 (1) |
0 (0) |
1 (0) |
|
| PCV7-related serotypes | 3 (5) | 6 (15) | 7 (14) | 16 (10) | 15 (9) | 14 (12) | 9 (9) | 38 (10) | |
| 6A | 3 (5) | 5 (12) | 6 (12) | 14 (9) | 12 (7) | 10 (9) | 7 (7) | 29 (8) | |
| 23A | 0 (0) | 1 (2) | 1 (2) | 2 (1) | 3 (2) | 4 (4) | 0 (0) | 7 (2) | |
| 9 | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 2 (2) | 2 (1) | |
| 19A |
11 (16) |
2 (5) |
0 (0) |
13 (8) |
27 (16) |
8 (7) |
10 (11) |
45 (12) |
|
| Non-PCV7 serotypes |
8 (12) |
5 (12) |
20 (39) |
33 (21)‡ |
18 (11) |
11 (10) |
32 (35) |
61 (16) |
|
| Total | 66 (100) | 41 (100) | 51 (100) | 158 (100) | 173 (100) | 114 (100) | 93 (100) | 380 (100) | |
*PVC7, 7-valent conjugate vaccine.
†Percentages have been rounded.
‡Thirteen serogroups were included among 33 invasive isolates as follows: 15 (6 strains), 24F (6), 10 (4), 34 (3), 35 (3), 1 (2), 3 (2), 12F (2), 5 (1), 11A (1), 13 (1), 20 (1), and 27 (1).
