While the West African Ebola outbreak continues, there is at least two signs of good news. The first, based on World Health Organization counts (H/T Centers for Disease Control), is that new cases in Sierra Leone have declined for four consecutive weeks. The last confirmed case of Ebola in Liberia, regrettably, passed away. New cases continue to increase in Guinea, which recently announced a 45-day state of health emergency in five prefectures.
There are encouraging developments in Ebola vaccine development. An article in The New England Journal of Medicine reports on two clinical trials of an ebola vaccine (H/T The Atlantic). Results indicated that 100 percent of the subjects demonstrated an immune response sufficient to ward off the Ebola virus (subjects were not exposed to Ebola, the proper immune response was determined via primate studies). Based on the results of these studies, the potential vaccine was introduced into two ongoing Phase 3 trials in Africa.