Part one of term paper
Twenty years ago Ebola virus first emerged in simultaneous outbreaks in Sudan and Zaire. Two following outbreaks have occurred, but transmission among human populations has not been sustained. Despite considerable progress in our understanding of Ebola we have not identified its natural reservoir or the trigger for its re-emergence in new ou ...

Part two of term paper
... have avoided it. The few cases reported in nearby towns have so far been among already ill patients transferred from Kikwit to other hospitals. The index case, seen in early April, was a hospital laboratory worker presumed at first to have typhoid; subsequent cases were initially found among a surgical team and others who cared for the laboratory worker, with secondary spread to other health workers and to family members acting as carers. Two thirds of the deaths have been among health workers. U ...