The World Health Organization (WHO) has expressed deep concern over an escalating Ebola outbreak, with the death toll rising to at least 131 in the Democratic Republic of the Congo and Uganda. The outbreak is marked by its speed and scale, prompting the U.S. to impose entry bans for travelers from affected regions. An American doctor has tested positive for the virus, raising alarm in the United States. Amid fears of the outbreak spreading, WHO and health officials are considering the use of experimental vaccines, as there are concerns that the outbreak could be more severe than initially thought. The agency has declared the situation a public health emergency of international concern, with calls for urgent regional coordination and enhanced support for healthcare workers on the front lines.