Table 2.

Parasite levels detected by blood films and by OptiMAL

No. of parasites/μl of bloodSpeciesNo. of positive blood filmsNo. of OptiMAL resultsSensitivity (%)
PositiveNegative
1–99 P. vivax 52340
P. falciparum 32167
100–199 P. vivax 880100
P. falciparum 110100
200–499 P. vivax 76186
P. falciparum 000NAa
500–999 P. vivax 330100
P. falciparum 110100
1,000–1,999 P. vivax 440100
P. falciparum 43175
>2,000 P. vivax 5251198
P. falciparum 880100
  • a NA, not applicable.