Primary Case Definition | · The presence of P. falciparum asexual parasitaemia above 500 per μL) on Giemsa stained thick blood films AND |
 | · the presence of fever (axillary temperature ≥ 37.5°C) |
Secondary Case Definition | · The presence of P. falciparum asexual parasitaemia above 0 per μL) on Giemsa stained thick blood films AND |
 | · the presence of fever (axillary temperature ≥ 37.5°C) or history of fever in the previous 24 hours |