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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*¶Comments to Author , and Jina Lee§Comments to Author 
Author affiliations: *Seoul National University College of Medicine, Seoul, South Korea; †Seoul National University Bundang Hospital, Seongnam, South Korea; ‡Inje University College of Medicine, Goyang, South Korea; §Seoul National University Boramae Hospital, Seoul, South Korea; ¶Seoul National University Hospital, Seoul, South Korea;

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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).

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