claim: the 3 countries mainly affected by ebola, guinea, liberia, and sierra leona, has 4810, 3956, and 2543 deaths respectively.
article_headline: the ebola outbreak, 2013a2016: old lessons for new epidemics | philosophical transactions of the royal society b: biological sciences
initial_claim: congo ebola deaths surpass 1,000 as attacks on treatment centers go on.