Despite “intensive medical procedures”, the 56-year-old died after contracting the virus in Liberia.
On Sunday it was announced the man would receive the experimental Zmapp treatment, which the U.S. has now authorized for use in Liberia. However, the firm behind the serum said its supply has been exhausted.
The World Health Organization says the outbreak is a “public health emergency of international concern.”
Health authorities struggle to control the worst outbreak of Ebola on record.