Table 2.
Number and proportion of samples positive for PfHRP2 antigen and anti-PfHRP2 antibody by ELISA
| Sample type | Country | n | Antigen | Antibody | ||
|---|---|---|---|---|---|---|
| No | (%) | No | (%) | |||
| Acute patients (symptomatic & microscopy + ve) | Cambodia | 15 | 14* | (100)* | 3 | (20.0) |
| Nigeria | 23 | 21 | (91.3) | 8 | (34.7) | |
| Philippines | 37 | 23 | (62.2) | 8 | (21.6) | |
| Sub-total | 75 | 57 | (76.0) | 19 | (25.3) | |
| Asymptomatic (microscopy + ve or –ve) | Solomon Islands | 28 | 6 | (21.4) | 3 | (10.7) |
| Uninfected endemic controls | Nigeria | 10 | 0 | 0 | 0 | 0 |
| Philippines | 8 | 0 | 0 | 2 | (25) | |
| Non-exposed controls | Brisbane | 6 | 0 | 0 | 0 | 0 |
*Antigen measured for 14 samples.