14 February 2012 Updated at 19:02 ET
Bacteria used to fight sleeping sickness
Michelle Roberts
Health reporter, BBC News
The sleeping sickness parasite gets into the bloodstream
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Scientists believe they have found a way to beat sleeping sickness using a bacterium against the tsetse fly host that spreads the disease to humans.
link-
http://www.bbc.co.uk/news/health-17024714