简介：ThecholeraoutbreakinEastAfricaandPerumadeKenya,Tanzania,UgandaandPerusufferheavilynotonlyfromlostlives,butalsofromlostexportsandadropintourism.However,lessonsfromPeruandEastAfricaandtheyearsofstrugglebytheUnitedNationsanditspartners,havefinallystirredtheinternationalcommunitytoaction.WaterandsanitationemergedasakeydevelopmentissueattheWorldSummitonSustainableDevelopmentinJohannesburg,SouthAfricalastyear.WorldHabitatDaythisyearfocusedonWaterandSanitationforCities.Thiscouldbeadefiningmomentfornationalplanner,policy-makersandcityauthoritiestoreflectonthechallengeaheadandtodedicatethemselvesanewtoataskthatastatementbyworldleadersinJohannesburgcalled“humanity'sbestinvestmenttoachievedevelopmentandsustainability”.