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Table 4 Capsular type distribution among invasive and colonizing group B streptococcal isolates by age

From: Frequency of antimicrobial resistance among invasive and colonizing Group B Streptococcal isolates

Age group Capsular type
Invasive isolates (n= 486) Ia
no. (%)
Ib
no. (%)
II
no. (%)
III
no. (%)
IV
no. (%)
V
no. (%)
VI no. (%) VII no. (%) VIII no. (%) NT no. (%) VT no. (%)
<1 (75) 26
(34.7)
6
(8.0)
8
(10.7)
19
(25.3)
0 15
(20.0)
0 0 0 0 1
(1.3)
1–17 (5) 2 (40.0) 1 (20.0) 0 1 (20.0) 0 1 (20.0) 0 0 0 0 0
18–29 (17) 4 (23.5) 2 (11.8) 4 (23.5) 2 (11.8) 0 5 (29.4) 0 0 0 0 0
30–49 (70) 18 (25.7) 8 (11.4) 10 (14.3) 6
(8.6)
0 28 (40.0) 0 0 0 0 1
(1.4)
≥ 50 (315) 68 (21.6) 37 (11.7) 43 (13.7) 34 (10.8) 1 (0.3) 131 (41.6) 0 0 0 3 (1.0) 1 (0.3)
Total 118 (24.3) 54 (11.1) 65 (13.4) 62 (12.8) 1 (0.2) 180 (37.0) 0 0 0 3 (0.6) 3 (0.6)
Colonizing isolates ( n = 167)            
18–19 31 (18.6) 23 (13.8) 18 (10.8) 22 (13.2) 2 (1.2) 60 (35.9) 0 0 1
(0.6)
10 (6.0) 0