This experimental Ebola vaccine, developed by the U.S. government, is just one of several undergoing small-scale, preliminary testing. University of Maryland School of Medicine/AP hide caption

itoggle caption University of Maryland School of Medicine/AP

A man stands above a new Ebola treatment center in Monrovia, Liberia. Health workers in Liberia, the hardest-hit nation, have turned people away from treatment units because of shortages of beds and staff. Pascal Guyot/AFP/Getty Images hide caption

itoggle caption Pascal Guyot/AFP/Getty Images

Some potential new Ebola drugs will be tested at treatment centers like this one run by Doctors Without Borders near Monrovia. John Moore/Getty Images hide caption

itoggle caption John Moore/Getty Images

Dr. Harold Varmus, a Nobel Prize winner, cancer biologist and director of the National Cancer Institute. Manuel Balce Ceneta/AP hide caption

itoggle caption Manuel Balce Ceneta/AP

Coalitions of patient advocates now help steer research funding toward particular projects. Lilli Carré for NPR hide caption

itoggle caption Lilli Carré for NPR

Ian Glomski outside his home in Charlottesville, Va., where hops grow in his garden. He quit an academic career in microbiology to start a liquor distillery. Richard Harris/NPR hide caption

itoggle caption Richard Harris/NPR

Victoria Ruiz (left), a postdoctoral fellow in immunology, works with Brianna Delgado, a high school student that she mentors, at the Blaser Lab, inside NYU's Langone Medical Center in New York, NY. Ramsay de Give for NPR hide caption

itoggle caption Ramsay de Give for NPR

Tom Murphy, 56, in his home in Gainesville, Va., was diagnosed with ALS four years ago. An experimental drug seems to have slowed the progression of his disease, he says, though most ALS patients aren't as lucky. T.J. Kirkpatrick for NPR hide caption

itoggle caption T.J. Kirkpatrick for NPR