Fig. 1

Location of surveyed schools, mosquito trap,s and spatial distribution of anti-filarial IgG4 values in Matara. The map shows the location for survey area: Matara is located in the southern part of Sri Lanka. Five schools (DSV, LPV, WWW, PMV, and MKV) surveyed for schoolchildren IgG4 are shown as white box. Black diamond indicates the location of CDC Gravid Traps for collecting Cx. quinquefasciatus. The center coordinates of the eight Traps are approximately N5.954128, E80.522119