Mrrzy, there's a basic difference between vaccines and drugs for treatment of active disease. Vaccines are given to healthy people to prevent infection. The drug described in the NOVA program was an experimental treatment drug, designed to work after infection to prevent virus replication within the body. The drugs currently on trial with healthy people are vaccines. Even if they prove non-toxic, further research will be needed to establish dosage and length of protection. They won't be any use to infected persons although they would be very helpful for care workers and frightened healthy people.

Meanwhile, the WHO has acknowledged that transfusions from ebola survivors may be used for treatment of active ebola. It presupposes laboratory equipment and transfusion supplies that probably don't currently exist in Liberia.