Figure 1. Schematic overview of the study design.

In 2001 microfilaria and anti-filarial IgG4 baseline surveys were performed and MF positive and lymphoedema patients were selectively treated. Baseline data on STH infections was collected in 2002, and the village was re-examined for filarial infections at that time just prior the first round of MDA with diethylcarbamazine plus albendazole. Subsequent post-MDA surveys were performed 9 to 11 months after each round of MDA. MDA was continued until 2007, when the last (6^th) round of MDA was provided and annual follow-up surveys were continued until 2010.