Ebola has killed more than 1,500 people this year and the World Health Organization says there could be as many as 20,000 cases before the outbreak is brought under control. Last Friday, it spread to a fifth African country — Senegal, where a university student who traveled there from Guinea was being treated.
There is no approved vaccine or specific treatment, just supportive care to keep them hydrated and nourished. Efforts have focused on finding cases and tracking their contacts to limit the disease, which spreads through contact with blood and other fluids.
If 20,000 deaths is a worst case, then this Ebola outbreak would be, more or less, just another day in the life for Africa.