The blood of a survivor of the Ebola virus is extracted as part of a study launched at Liberia's John F. Kennedy Hospital in Monrovia, Liberia, June 17, 2015.

The blood of a survivor of the Ebola virus is extracted as part of a study launched at Liberia's John F. Kennedy Hospital in Monrovia, Liberia, June 17, 2015.

Credit:

Stringer/Rueters

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