The course of Ebola in the American doctor who was infected with the disease has taken a 'slight turn for worse', said his Christian aid agency Thursday.
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"Dr. Brantly took a slight turn for the worse overnight," it said.
The group did not elaborate further on Brantly's condition.
It said that when an experimental serum arrived in the capital, Monrovia, on Wednesday, there was only enough for one person and Brantly had asked for it to be given to Writebol.
"Even as he battles to survive Ebola, this heroic doctor is still focused on the well-being of others," said the statement.
It also noted that Brantly, 33, had been given a unit of blood from a 14-year-old boy who survived Ebola because of his care.
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The current outbreak of Ebola is the largest in history and has killed 729 people in Sierra Leone, Guinea, Nigeria and Liberia, the World Health Organization said.
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On Tuesday, the outbreak claimed the life of Umar Khan, 43, a top doctor in Sierra Leone and the west African nation's sole virologist.
Source-AFP