When Ebola broke out in West Africa in December 2013, triggering the largest-ever epidemic of the disease, there was no vaccine or drug that had been shown to be safe and effective in people. Just 20 months later, a vaccine seems to confer total protection against infection, according to the preliminary results of a trial in Guinea.
Original Source [2]
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/how-ebola-vaccine-success-could-reshape-clinical-trial-policy
[2] http://www.nature.com/news/how-ebola-vaccine-success-could-reshape-clinical-trial-policy-1.18121
[3] http://admin.indiaenvironmentportal.org.in/category/author/declan-butler
[4] http://admin.indiaenvironmentportal.org.in/category/author/ewen-callaway
[5] http://admin.indiaenvironmentportal.org.in/category/author/erika-check-hayden
[6] http://admin.indiaenvironmentportal.org.in/category/journal/nature
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ebola-virus-disease-ebola-hemorrhagic-fever
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/medical-research
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drugs
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/guinea
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/africa
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vaccination
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/who