Table 2. Comparison between real-time PCR, rapid IgM/IgG, and ELISA IgM/IgG as detection methods for diagnosis of chikungunya.
| Days after onset | Number | PCR + (%) | Rapid test | ELISA | ||
|---|---|---|---|---|---|---|
| IgM+ (%) | IgG+ (%) | IgM+ (%) | IgG+ (%) | |||
| 1−3 | 148 | 139 (93.92) | 12 (8.11) | 5 (3.38) | 9 (6.08) | 4 (2.70) |
| 4−6 | 81 | 67 (82.72) | 30 (37.04) | 4 (4.94) | 31 (38.27) | 3 (3.70) |
| 7−9 | 34 | 12 (35.29) | 31 (91.18) | 4 (11.76) | 31 (91.18) | 8 (23.53) |
| 10−12 | 13 | 2 (15.38) | 13 (100.00) | 5 (38.46) | 13 (100.00) | 10 (76.92) |
| ≥13 | 34 | 1 (2.94) | 33 (97.06) | 22 (64.71) | 34 (100.00) | 31 (91.18) |
| Total | 310 | 221 (71.29) | 119 (38.39) | 40 (12.90) | 118 (38.06) | 56 (18.06) |