Kent Brantly, one of the two American doctors infected with Ebola while working in west Africa, is expected to be released from Emory University Hospital today. The second patient, Dr. Nancy Writebol, remains in recovery, but is regaining strength, her husband told CNN.

"Today I join all of our Samaritan's Purse team around the world in giving thanks to God as we celebrate Dr. Kent Brantly's recovery from Ebola and release from the hospital," Franklin Graham, president of Samaritan's Purse, the aid group Bradley was working for, said in a statement.

Brantly and Writebol were saved in part by an experimental treatment, called ZMapp, and were among the first humans to have received the serum. CNN reports that three aid workers in Africa infected with Ebola have also been given the treatment and are showing signs of improvement.

This is the deadliest Ebola breakout ever. From the Associated Press:

The World Health Organization said the death toll is rising most quickly in Liberia, which now accounts for at least 576 of the fatalities. At least 2,473 people have been sickened across West Africa, which is now more than the caseloads of all the previous two-dozen Ebola outbreaks combined.

[Image via WSB-TV]