2.1.3. Recruitment, randomization and enrolment: Fever patients in the villages surrounding Pailin or in Pailin itself will be screened with a PfHRP2-based malaria rapid test (ParacheckR) by the village malaria workers. In case of a positive test result, the patient will be transported by the study team to Pailin Referral Hospital, where further consent and enrolment procedures will be conducted. It will be made clear from the outset that refusal to participate will in no way jeopardize subsequent antimalarial treatment.