Scientists believe a chimp virus may hold the clue in the long-running battle to develop a malaria vaccine.
Experts have been trying for the last 20 years to find a jab for the disease, which kills more than 1m people a year.
An Oxford University team are using the chimp virus to provoke an immune response in cells where the parasites responsible for malaria gather.
Trials are just getting under way and, if they prove successful, a vaccine may be available within five years.
The team is using a genetically-modified chimp adenovirus combined with a malaria gene in a bid to kill the parasites once they enter the body.
http://news.bbc.co.uk/2/hi/health/7219371.stm
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