A few American scientists exposed mice to Ebola Virus and then obtained the antibodies in a serum which the mice produced to fight against the invading Ebola virus.
CNN said “The medicine is a three-mouse monoclonal antibody, meaning that mice were exposed to fragments of the Ebola virus and then the antibodies generated within the mice’s blood were harvested to create the medicine. It works by preventing the virus from entering and infecting new cells.” The serum is stored at Subzero temperature.
Testing of the serum: Some monkeys were exposed to Ebola virus. Four of the monkeys were injected with the serum and they survived while the control monkey was not given the serum and it died after few days of exposure to Ebola virus.