Table 1.
Age-specific dengue seroprevalence in children, Sri Lanka*
| Age group (years) | No. children | No. seropositive by IgG ELISA | No. seropositive confirmed by dengue neutralization test | Seroprevalence (%) |
|---|---|---|---|---|
| < 1 | 51 | 12 | 11 | 21.57 |
| 1–3 | 196 | 71 | 67 | 34.18 |
| 4–6 | 191 | 105 | 100 | 52.36 |
| 7–9 | 225 | 150 | 145 | 64.44 |
| 10–12 | 136 | 103 | 101 | 74.26 |
| Total | 799 | 441 | 424 | 53.07 |
*
Dengue seroprevalence at the beginning of study (baseline) was determined by screening all serum samples by dengue IgG enzyme-linked immunosorbent assay (ELISA) and then testing the positive samples by dengue neutralization test.