WHO: Bundibugyo Ebola vaccine months away from human trials (nbcnews.com)

• No licensed vaccine for Bundibugyo strain
• Two candidates: 2-3 months (pending animal data) and 6-9 months
• Ervebo cross-protection review ongoing; 2011 study showed limited efficacy

"The WHO announced that a vaccine for the Bundibugyo strain driving outbreaks in DRC and Uganda is likely months from human trials. Two candidates exist; the more promising requires 6-9 months. Merck's Ervebo (Zaire strain) is under review for possible cross-protection, but data is limited. Without a vaccine, response relies on contact tracing, isolation, and infection control."