Thankfully, organizations are experiencing a shortage in research subjects for Ebola trials in West Africa.

As a result of the decline in the number of Ebola cases, there may be a shortage of research subjects for fast-developing treatments. NPR suggests that approximately 27,000 participants are needed.

Vaccine trials, however, largely rely on healthy volunteers. As such, preventative vaccines for Ebola will move forward regardless of the spread of the disease.