TABLE 1.

Performance of IgG avidity test with convalescent-phase sera from patients with primary and secondary dengue infectionsa

AI rangeData for patients with:
Primary infectionSecondary infection
No. (%) of patientsMean AI (SD)No. (%) of patientsMean AI (SD)
≥240 (0.0)28 (93.3)52 (16.7)
<2427 (100.0)12 (4.6)2 (6.7)21 (2.8)
Total27 (100.0)12 (4.6)30 (100.0)50 (18)
  • a AI, avidity index.