CNN reports the West African country of Senegal has confirmed its first Ebola case one week after closing its border with Guinea over fears that the deadly outbreak could spread, the Senegalese Press Agency reported Friday. Senegal's health minister, Awa Marie Coll Seck, confirmed that a 21-year-old university student from Guinea was infected with the Ebola virus and placed in quarantine in the Fann Hospital in Dakar, the news agency reported. The Ebola outbreak "continues to accelerate" in West Africa and has killed 1,552 people, the World Health Organization said Thursday. The total number of cases stands at 3,069, with 40% occurring in the past three weeks. "However, most cases are concentrated in only a few localities," the WHO said.