The World Health Organization says the arrival of one of three trial Ebola vaccines in Uganda Thursday “marks a historical milestone in the global capacity to respond to outbreaks.” The 1,200 doses of the Sudan ebolavirus vaccine arrived “just 79 days after the outbreak was declared on 20 September,” the WHO said. “Uganda is showing that life-saving research can be promptly organized in the midst of an outbreak,” said Dr. Jane Ruth Aceng Acero, Uganda’s minister of health. In contrast, WHO said that “To start Phase 3 trials in Guinea during the West Africa Ebola outbreak in 2015, it was 7 months from declaration to arrival of vaccines. This was a great achievement and set historical records at the time.” The vaccine for the Sudan ebolavirus is one of the three candidates recommended for the trial by an independent WHO expert panel. The other two will be added to the trial when the doses arrive.