The ongoing Ebola outbreak in the Democratic Republic of Congo has quickly grown into the second-largest on record, with cases taking just weeks to reach levels that had taken years in previous outbreaks. In just over two months, cases in this outbreak have surpassed the total number reported in another historic Ebola outbreak in the DRC that lasted nearly two years, from August 2018 to June 2020. Now, the only larger Ebola outbreak is the 2014-16 outbreak in West Africa, which ended with more than 28,600 reported cases and 11,325 deaths. "Despite the progress we have made, the outbreak in DRC is continuing to outpace the response," WHO Director-General Dr. Tedros Adhanom Ghebreyesus said this month. Research in real timeAs the outbreak continues to grow in the DRC, trials for vaccines and treatments are underway.