The Democratic Republic of the Congo reports 513 suspected Ebola cases and 131 deaths as the virus spreads rapidly across the region.The World Health Organization declared a public health emergency of international concern after the Bundibugyo strain reached Uganda.Diagnostic delays and regional armed conflict have significantly hampered containment efforts since the outbreak went undetected for weeks.Experts cite reduced international aid and weakened surveillance as critical factors complicating the current emergency response in Central Africa.