Fig. 1From: Single blinded semi-field evaluation of MAÏA® topical repellent ointment compared to unformulated 20% DEET against Anopheles gambiae, Anopheles arabiensis and Aedes aegypti in TanzaniaA semi-field system (SFS). A semi-field system (SFS) with 29 × 21 m built from a fabricated greenhouse frame modified to make two chambers with a central corridor and an opaque polyethylene roof for rain protectionBack to article page