I’d suspect Sierra Leone is having troubles recording information about deceased patients—either that or they have a different strain.
Nice graph, but unfortunately it’s wildly inaccurate.
The numbers in Liberia and Sierra Leone, in particular, are universally agreed to be massively understated. Even the WHO, the most politicized and least effective group involved in this mess, cautions against using the official numbers.
According to this morning’s news, Sierra Leone has officially given up trying to care for the victims in any kind of medical center and is now attempting to provide materials for people to care for victims at home. In a practical sense, the same situation exists in Liberia although they have not made it official.
Guinea is harder to figure out. It has approximately 10 million people, approximately the same as Liberia and Sierra Leone combined. The news from Guinea has been much more limited.
I do not know what the differences are between Guinea and the other two countries, but based on the limited information I have seen it seems reasonable to assume that the eventual outcome there will be the same as in Liberia and Sierra Leone.