An Ebola outbreak originating in the Democratic Republic of the Congo (민주콩고) in Central Africa has spread to Kenya in Eastern Africa and Nigeria in Western Africa. This expansion marks the largest geographic scale of the disease’s spread ever recorded. The outbreak initially began in the Democratic Republic of the Congo and has now crossed borders, raising concerns about regional health security. Authorities are working to contain the virus and prevent further dissemination, but the widening geographic area presents significant challenges. The spread to Kenya and Nigeria indicates a heightened risk for neighboring countries as well. Health organizations are mobilizing resources, and vaccination efforts are underway in affected regions, with ongoing monitoring to track new cases and potential transmission routes.