Fig. 2

Four-phase systematic assessment and modification of protocols for the recovery of Taenia saginata eggs from the gastrointestinal tract of house flies. The black arrows indicate the best-performing protocols, as determined by performance evaluation, which were repeated in the subsequent phase. Protocol notation: G, gastrointestinal tract; I–IV, phase during which the protocol was evaluated; 1–4, protocol evaluated within that phase. PBS, Phosphate-buffered saline