Have We Moved Closer to Finding a Long-Term Vaccine against Ebola?

​An Ebola vaccine appears to be providing volunteers with protection against the disease two years after they received it, according to an April 16, 2018, article in STAT News. A February 2017 study in The Lancet showed the vaccine worked, but how long its effects would last remained a question. An effective long-lasting vaccine would be a useful tool in controlling Ebola outbreaks, said the author of the STAT article, because vaccination could prevent the rapid spread of disease that can occur in hospitals in the early days of an outbreak.