FilariasisFilarioideaWuchereria bancroftiElephantiasis, FilarialBrugia malayiMansonellaMicrofilariaMansonelliasisFilaricidesBrugia pahangiDipetalonema InfectionsPrevalenceAntigens, HelminthLoaDiethylcarbamazineWuchereriaPleural CavitySetariasisBrugiaAntibodies, HelminthSetaria NematodeHymenolepis nanaOnchocerca volvulusMaliAnthelminticsWolbachiaOnchocerciasisEndemic DiseasesLarvaCytokinesInterleukin-4Malaria, FalciparumCross-Sectional StudiesImmunoglobulin GRisk FactorsAge DistributionAge FactorsSex DistributionBrazilSex FactorsHealth SurveysQuestionnairesUnited StatesRural PopulationUrban Population