How the experimental Ebola drug works

As the number of deaths in Africa continue to rise, two Americans infected with Ebola are now being treated at an Atlanta-area hospital. On Tuesday, Erin Burnett spoke with Stephanie Elam, who reports on the new experimental drug that may save their lives.

ZMapp was developed by a team of 25 labs in seven countries, but it had never been tested on humans before it was given it to Dr. Kent Brantly and Nancy Writbol.

While the drug wasn't even slated for testing untill 2015, Dr. Erica Ollmann Saphire told Elam she thought the serum would work, and would have taken it herself.

Watch the associated video for Elam's full report on the new serum tasked with combatting Ebola.