By Diadie Ba and Saliou Samb DAKAR/CONAKRY (Reuters) - The West African state of Senegal became the fifth country to be hit by the world's worst Ebola outbreak on Friday, while riots broke out in neighbouring Guinea's remote southeast where infection rates are rising fast. In the latest sign that the outbreak of the virus, which has already killed at least 1,550 people, is spinning out of control, the World Health Organisation (WHO) said that Ebola cases rose last week at the fastest pace since the epidemic began in West Africa in March. The epidemic has defied efforts by governments to control it, prompting the leading charity fighting the outbreak, Medecins Sans Frontieres (MSF), to call for the U.N. Security Council to take charge of efforts to stop it. Including the fatalities, more than 3,000 have been infected since the virus was detected in the remote jungles of southeastern Guinea in March and quickly spread across the border to Liberia and Sierra Leone.
The United Nations will use Ghana as a base for supplies bound for countries stricken by an Ebola outbreak that has killed more than 1,550 people in West Africa, the Ghanaian presidency said in a statement on Friday. UN chief Ban Ki-moon had a telephone conversation on Friday evening with Ghana's President John Dramani Mahama, who agreed to let international agencies use Ghana's capital Accra as a base for air lifting supplies and personnel to affected countries, the statement said. The statement said the UN and local authorities would work closely to put in place appropriate screening and prevention measures to avoid any adverse effects on Ghana as a result of the international operations.