Table 1.
Recombinant HRP2 concentrations used in Trial 1, and equivalent parasite densities derived from the median HRP2 concentration of dilutions of 200 parasite/μL of the WHO global specimen bank
| HRP2 concentration (ng/mL) | Line intensity (densitometer) | Mean line intensity (3 readers) | Calculated parasite density equivalent (parasite/μL) |
|---|---|---|---|
| 15 | 1.8 | 1.3 | 313 |
| 150 | 7.2 | 3.0 | 3,125 |
| 1,500 | 16.9 | 4.0 | 31,250 |
| 15,000 | 17.9 | 4.0 | 312,500 |
| 150,000 | 13.0 | 3.7 | 3,125,000 |
| 300,000 | 10.8 | 3.0 | 6,250,000 |
| 500,000 | 5.2 | 2.3 | 10,416,667 |
| 750,000 | 4.4 | 2.0 | 15,625,000 |
| 1,000,000 | 2.4 | 2.0 | 20,833,333 |
| 1,500,000 | 1.5 | 1.0 | 31,250,000 |