The International Aids Conference in Barcelona is to be told today that a potential Aids vaccine could be ready sooner than originally thought.
The American company VaxGen claims the vaccine could be in use in five years rather than the 10 years as previously thought.
According to the BBC, the vaccine is one of only eight being tested on humans to a "significant degree", and the only one in an end-stage trial.
Results from the trial are expected be ready early next year.
To be granted a licence they will have to show the vaccine is effective in at least a third of patients.
The conference is being organised by the United Nations agency UNAids.
AP
