Number of collections
A total of 240 collection nights (4 households * 60 clusters) were performed with each collection method at baseline between September and October 2019. Post-net distribution, PSCs and HLCs were conducted eight times over two years in each cluster for a total of 1920 collection nights per method, while CDC light traps were performed twice (480 collection nights) in all clusters at 16 months (June–July 2021) and 19 months (September–October 2021) post-net distribution.