Fig. 2

Box plots showing the effect of different doses of the test compounds on the time that Rhodnius prolixus spent in the proximity of a vertebrate host when the insects were exposed to 2-mercaptoethanol, dimethyl sulfide, 2-phenylethanol, and DEET (median, 25th and 75th percentiles are shown; whiskers denote minimum and maximum values). Asterisks denote significant differences among treatments according to Dunnett’s multiple comparison test (*P < 0.05; **P < 0.01, ****P < 0.0001). Host alone a, b and c are control repetitions consisting of exposure to the forearm of the host in the absence of any test compound