Year in review: Ebola vaccines on the way
Two front-runners show promising results
SCOURGE Following the Ebola outbreak that ravaged West Africa until early 2015, killing more than 11,000 people, scientists are closing in on developing vaccines to protect against ebolavirus (above, in blue).
NIAID/Flickr
The race to develop Ebola vaccines closed in on the finish line this year, as scientists tested two candidates that could ultimately be stockpiled for future outbreaks.