Officials continue probe on DR Congo mystery illness University of Minnesota Twin CitiesMysterious illness, dubbed "disease X," has killed dozens of people in Congo, WHO says CBS NewsMystery ‘Disease X’ outbreak widens as WHO sends rapid response team to DR Congo South China Morning PostWHO Provides Update About Disease X In Democratic Republic Of The Congo ForbesAfrica CDC Deploys Experts on Investigation Mission for Disease outbreak in Democratic Republic of Congo africacdc.org