SUSTAINABLE UPGRADES TO SEWAGE SYSTEMS TO REDUCE VECTOR-BORNE DISEASES IN HIGH-DENSITY URBAN ZONES (A CASE STUDY OF YENAGOA LOCAL GOVERNMENT AREA, BAYELSA STATE) Abstract This study proposes sustainable upgrades to sewage systems to mitigate vector-borne diseases in high-density urban zones of Yenagoa LGA, Bayelsa State, Nigeria. Yenagoa’s rapid urbanization, coupled with oil-rich wetland ecology, has […]