Skip to main content
Back to Show
PBS News Hour

Why testing an Ebola vaccine isn’t so easy

In Sierra Leone and Liberia, where the Ebola epidemic has been a nightmare, the promise of a vaccine offers hope. Science correspondent Miles O’Brien reports on the challenges of conducting experimental drug trials there and the desperate need to find a fix.

Support Provided By
Season
December 7, 2025 - PBS News Weekend full episode
24:09
December 7, 2025 - PBS News Weekend full episode
December 6, 2025 - PBS News Weekend full episode
24:09
December 6, 2025 - PBS News Weekend full episode
December 5, 2025 - PBS News Hour full episode
57:46
December 5, 2025 - PBS News Hour full episode
December 4, 2025 - PBS News Hour full episode
57:46
December 4, 2025 - PBS News Hour full episode
December 3, 2025 - PBS News Hour full episode
57:46
December 3, 2025 - PBS News Hour full episode
December 2, 2025 - PBS News Hour full episode
57:46
December 2, 2025 - PBS News Hour full episode
December 1, 2025 - PBS News Hour full episode
57:46
December 1, 2025 - PBS News Hour full episode
November 30, 2025 - PBS News Weekend full episode
24:09
November 30, 2025 - PBS News Weekend full episode
November 29, 2025 - PBS News Weekend full episode
24:09
November 29, 2025 - PBS News Weekend full episode
November 28, 2025 - PBS News Hour full episode
57:46
November 28, 2025 - PBS News Hour full episode
November 27, 2025 - PBS News Hour full episode
57:46
November 27, 2025 - PBS News Hour full episode
November 26, 2025 - PBS News Hour full episode
57:46
November 26, 2025 - PBS News Hour full episode
Active loading indicator