EthiopiaPovertyDeveloping CountriesPoverty AreasElephantiasisRural PopulationSocioeconomic FactorsTrichiasisCathaCross-Sectional StudiesNeglected DiseasesFamily CharacteristicsPrevalenceResidence CharacteristicsToilet FacilitiesFood SupplyIncomeRural HealthUrban PopulationHealth Services AccessibilityEthnobotanyTrachomaLymphangitisMalariaMedicine, African TraditionalRisk FactorsHealth Knowledge, Attitudes, PracticeUnited States