Five months into the Ebola outbreak in the Democratic Republic of Congo, there is still no approved vaccine against the rare Bundibugyo strain that has now caused more than 4,000 deaths. But candidates currently undergoing trials give reason to hope, according to Emanuele Capobianco of Gavi, the global vaccine alliance.
The DRC's worst-ever Ebola outbreak has now passed the 9,000-case mark, with the number of deaths topping 4,000 at the beginning of this month.
