Virus RNA copies/ml | 1 × 106 | 1 × 105 | 1 × 104 | 1 × 103 | 1 × 102 | 1 × 101 | 1 × 100 |
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ELISAb (OD405) | 1.45 ± 0.05 | 1.55 ± 0.19 | 1.06 ± 0.17 | 0.41 ± 0.11 | 0.17 ± 0.13 | 0.09 ± 0.01 | 0.09 ± 0.03 |
- aThe MR766 strain of ZIKV (1 × 107 viral RNA copies/ml) was serially diluted 1:10 and multiplex-RT-PCR-ELISA was conducted to determine the limits of detection
- bValues are the means ± SEM calculated from 3 determinations. OD readings ≥ 4-times the negative control (0.1 OD405) were judged positive [27]. Values 2- to 4-times the negative control were considered borderline