Until this year, the world had recorded 1,640 deaths from Ebola since the virus was discovered in 1976.
Then Ebola appeared in West Africa.
So far this year, 887 people have died of Ebola in West Africa, the World Health Organization said Monday.
To put that into perspective, more than a third of all people known to have died from the Ebola virus have died in the current outbreak.
And the outbreak is still spreading at a frightening rate. Last week, there were more than 200 new cases reported across four countries.
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