( CNN ) -- At least 70 people are reported to have died from Ebola hemorrhagic fever in Guinea , according to a statement from the West African nation 's health ministry . Officials say there are at least 111 suspected cases of the viral disease , which spreads in the blood and shuts down the immune system , causing high fever , headache and muscle pain . The virus is transmitted by contact with the fluids of infected people or animals . Medecins Sans Frontieres ( MSF ) describes Ebola as `` one of the world 's most deadly diseases . '' It is rare , but it creates panic , because there is no cure and it 's fatal in most cases , according to MSF . `` The priority is to isolate suspected cases , '' said MSF , which has set up two isolation facilities in the most affected districts , Gueckedou and Macenta , both in southern Guinea . Four of the fatalities from the disease are in Conakry , the capital city , which is on the coast . Genetic analysis of the virus shows that it is closely related to Zaire Ebola virus , which was reported in 2009 in the Democratic Republic of the Congo ( formerly Zaire ) , according to the Centers for Disease Control and Prevention . Senegal 's Interior Ministry decided to close its border with Guinea until further notice to prevent the spread of the disease , according to Senegal 's state news agency . The World Health Organization says that , to date , no confirmed cases of Ebola have been found outside of Guinea , but at least 12 suspected cases are under investigation in neighboring Liberia and Sierra Leone . Joseph Netto and Pierre Meilhan contributed to this report .
Death toll from an Ebola outbreak in Guinea reaches 10 , including 4 in the capital . WHO have set up isolation facilities in two regions , because there is no cure or vaccine for Ebola . Senegal says it 's closed the border with Guinea of prevent spread of Ebola . World Health Organization reports no cases of Ebola confirmed outside of Guinea .