[ti:] [ar:] [al:] [00:00.00]British and Canadian scientists say [00:02.11]they have identified a potential treatment for sleeping sickness [00:05.22]which kills about 50,000 people a year in Africa. [00:08.37]The scientists at the University of Dundee in Scotland [00:11.84]were funded to research diseases neglected [00:14.23]by major pharmaceutical companies [00:15.96]One of them, [00:16.92]Professor Mike Ferguson told the BBC [00:18.91]the drug works by disabling a human enzyme [00:21.65]essential to the parasite which causes sleeping sickness.