Table 2. Distribution of causative organisms for invasive bacterial infection from Jan 1996 to Dec 2020, by age group.
| Etiology | No. of cases (%) by age group | Total | |||
|---|---|---|---|---|---|
| 3–23 mon | 24–59 mon | 3–59 mon subtotal | ≥ 5 yr | ||
| S. aureus | 168 (24.7) | 106 (22.1) | 274 (23.6) | 601 (58.1) | 875 (39.9) |
| S. pneumoniae | 288 (42.3) | 204 (42.5) | 492 (42.4) | 126 (12.2) | 618 (28.2) |
| Salmonella spp. | 81 (11.9) | 101 (21.0) | 182 (15.7) | 153 (14.8) | 335 (15.3) |
| S. pyogenes | 25 (3.7) | 28 (5.8) | 53 (4.6) | 82 (7.9) | 135 (6.2) |
| H. influenzae | 68 (10.0) | 33 (6.9) | 101 (8.7) | 31 (3.0) | 132 (6.0) |
| S. agalactiae | 47 (6.9) | 1 (0.2) | 48 (4.1) | 16 (1.5) | 64 (2.9) |
| N. meningitidis | 3 (0.4) | 3 (0.6) | 6 (0.5) | 23 (2.2) | 29 (1.3) |
| L. monocytogenes | 1 (0.1) | 4 (0.8) | 5 (0.4) | 2 (0.2) | 7 (0.3) |
| Total | 681 (31.0) | 480 (21.9) | 1,161 (52.9) | 1,034 (47.1) | 2,195 |
Values are presented as number (%).