The WHO says the last reported death was on 23 April. After announcing on Thursday that the virus had spread to Zimbabwe, Harare health officials announced that tests on the three reported victims had proved negative. All three are reported to be members of the military. Thousands of Zimbabwe troops have been crossing into DRC to support president Laurent Kabila as he attempts to put down a rebel uprising. The rebels are based in the northeast of the country where the Marburg virus outbreak is reported to have taken place.
Most victims work in the region's gold mines.
The Marburg virus was first identified in Germany in 1967. Since then, there have been two reported outbreaks in Europe and three in Africa. It causes a deadly haemorrhagic fever, but does not appear to be as virulent as Ebola, which it ressembles. The worst outbreak of Ebola was in the DRC, then Zaire, in 1995 which killed about 220 people. The BBC is not responsible for the content of external internet sites.