Evaluating malaria reactive surveillance and response strategies in northeast Cambodia: a mixed-methods study

Cambodia aims to eliminate malaria latest by 2030 applying the 1–3-7 malaria reactive surveillance and response (RASR) strategy which involves malaria case notification, investigation and classification on the same day as diagnosis, reactive case detection within three days, and investigation and classification of new active focus within seven days of case notification. This study investigates the implementation of the RASR strategy in terms of its timeliness, facilitators and barriers, and acceptability for implementation, thereby providing recommendations to improve the strategy in the context of the national health system.