Study population and sampling
malaria
MALARIA, EVENTS
Purposive sampling was used to target participants included in this qualitative study and were individuals in the two provinces with the highest number of RDA events conducted during the RCT period (Tak and Kanchanaburi). Study participants who were key malaria and health staff or individuals who received the intervention during the RCT were selected for focus group discussions (FGDs) and key informant interviews (KIIs) to identify a maximum variation in responses. FGDs were conducted among HPH staff and VHVs with a target of six individuals per FGD. HPH staff received training on conducting active case detection, and protocol specific procedures on G6PD testing and interpretation, and medicine administration, safety, and adherence. HPH staff were also in charge of administering the malaria medicines to study participants according to the national malaria treatment guidelines [KIIs were conducted among malaria and health staff at the provincial and district health offices. These staff are responsible for malaria at the provincial and district levels and have a key role as a supervisor and coordinator to ensure malaria activities (routine and particularly for this study) were conducted per protocol. Communities that received RDA during the RCT were targeted for KIIs and included individuals who had received the intervention and reported visiting the forest or forest-fringe for occupational purposes (foraging, gardening crops, hunting or rubber tapping) and may have stayed overnight. Participants were eligible for study inclusion if they were over 18 years old, participated in either receiving or implementing the RDA activities, and provided verbal informed consent before the interview, including permission to audio record the interviews.