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 |