Serotype Distribution and Antimicrobial Resistance of Streptococcus pneumoniae Isolates Causing Invasive and Noninvasive Pneumococcal Diseases in Korea from 2008 to 2014

Table 1

Distribution of pneumococcal serotypes by patient’s age group.

Serotype	Total (378); (%)	Age group (%)
		≤5 years ()	≥65 years ()	6–64 years ()
3	51 (13.5)		28 (14.2)	23 (13.9)
35	41 (10.8)	1 (6.3)	22 (11.2)	18 (10.9)
19A	34 (9.0)	6 (37.5)	18 (9.1)	10 (6.1)
19F	25 (6.6)	1 (6.3)	15 (7.6)	9 (5.5)
6A	23 (6.1)		13 (6.6)	10 (6.1)
34	21 (5.6)	1 (6.3)	10 (5.1)	10 (6.1)
11A	15 (4.0)	2 (12.5)	9 (4.6)	4 (2.4)
6B	15 (4.0)		9 (4.6)	6 (3.6)
9V	15 (4.0)		8 (4.1)	7 (4.2)
15B	12 (3.2)		6 (3.0)	6 (3.6)
6D	12 (3.2)		8 (4.1)	4 (2.4)
23F	11 (2.9)	1 (6.3)	2 (1.0)	8 (4.8)
22F	10 (2.6)		7 (3.6)	3 (1.8)
6C	10 (2.6)	1 (6.3)	4 (2.0)	5 (3.0)
14	9 (2.4)		4 (2.0)	5 (3.0)
23A	9 (2.4)	2 (12.5)	2 (1.0)	5 (3.0)
7B	2 (0.5)	1 (6.3)	1 (0.5)
Others	63 (16.7)		31 (15.7)	32 (19.4)
7-valent	81 (21.4)	2 (12.5)	41 (20.8)	38 (23.0)
10-valent	88 (23.3)	2 (12.5)	45 (22.8)	41 (24.8)
13-valent	196 (51.9)	8 (50.0)	104 (52.8)	84 (50.9)
23-valent	236 (62.4)	10 (62.5)	126 (64.0)	100 (60.6)
VTs	259 (68.5)	10 (62.5)	139 (70.6)	110 (66.7)
NVTs	119 (31.5)	6 (37.5)	58 (29.4)	55 (33.3)

VTs: vaccine serotypes; NVTs: nonvaccine serotypes.
Others include 15A, 13, 20, 33F, 10A, 4, 9N, 1, 16, 12F, 5, 24, 18C, 7F, 8, 37, 11B, 17A, 17F, and 23B.