Figure 3

Fig. 3: infestations by Triatoma infestans detected in March 2000 using 1-2 matched pairs of shelter units and Tetra Brik boxes according to installation site (on vertical posts and beneath the thatched roof) in peridomestic sites that had been negative (A) or positive (B) by timed manual collections in March 2000, Amamá and nearby villages, December 1999-March 2000. Empty bars are based on the finding of any sign of infestation, excluding T. garciabesi or T. guasayana; hatched bars are based on the finding of T. infestans bugs, exuviae or eggs. Numbers on top of each bar represent the total number of sites inspected for infestation by the recovered devices.