CONAKRY: Guinea said on Tuesday 74 people had died so far this year in one of the worst ever outbreaks of the Ebola virus. The health ministry said there had been 121 confirmed cases of Ebola—an incurable disease that can kill up to 90 percent of its victims—since January. Four people are receiving treatment in the capital Conakry, and six in Gueckedou, in the south of the country, which has seen one of the most serious outbreaks. But the ministry said there had been “no new cases of Ebola recorded” since Sunday. The WHO has described west Africa’s first Ebola outbreak as one of the most challenging since the virus emerged in 1976 in what is now the Democratic Republic of Congo.