Distribution of house indices (a) and trap density indices (b–f) measured in the five study sites.

<p>City legends as in <a href="http://www.plosntds.org/article/info:doi/10.1371/journal.pntd.0003475#pntd.0003475.g002" target="_blank">Fig. 2</a>. DQC and NIG were evaluated, respectively, only in the first and in the second year of fieldwork. “Adultrap (1 day)” stands for the original protocol, recommended by the manufacturer, consisting of exposure during 24 hours and employed during the first year; “(Adultrap 4 days)” was the approach used during the second year aiming to improve trap sensitivity.</p>