Lancet has a report of a vaccine for the Ebola virus.
Here's a popular press summary of the article: http://www.nytimes.com/2016/12/22/health/ebola-vaccine.html
Seems like the vaccine should be very helpful in future outbreaks. However, it's efficacy will rely on the ability of government and public health officials to efficiently distribute the vaccine in future outbreaks, which is not always so easy in the third-world countries where Ebola outbreaks occur.
There is still work to do, however, to obtain better vaccines in the future:
Of course, it is not clear whether targeted, "ring vaccination" or routine vaccination would be the better strategy against a disease with relatively infrequent outbreaks such as Ebola.
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