The Ebola outbreak in the east of the Democratic Republic of Congo has become the second-worst on record, with the official death toll passing a grim milestone of 1,500. And in another alarming update, authorities in DR Congo confirmed on Thursday that the virus was spreading much faster than in previous outbreaks. This outbreak is the 17th to have emerged in DR Congo since Ebola was discovered 50 years ago. Uganda's first known case this time was a man from DR Congo who crossed the border for treatment. Once health authorities confirmed multiple cases had been imported from DR Congo, they activated a specialist Ebola treatment centre at Mulago hospital, in the capital city, Kampala.