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The two dozen or so individuals have not contracted the virus despite having unprotected sex with partners who are HIV positive.
Studying how their immune systems keep the virus at bay could help scientists develop an effective vaccine against Aids.
According to a consensus of scientists, vaccinating against AIDS should be possible one day. Attempts so far have not proved successful but trial vaccines are being tested around the world.
Clues to combating the disease, which has killed more than 25 million men, women and children worldwide, come from a minority of individuals who are repeatedly exposed to HIV but never succumb to infection.
The first example of this was found in Kenya among sex workers who appear immune to HIV.
Follow-up research by the universities of Oxford and Nairobi has led to a prototype vaccine which is being trialed in the UK and Kenya.
The research, by the Uganda Virus Research Institute, is expected to be published later this year.
Hope for AIDS vaccine
The search for an AIDS vaccine could be a step closer. Researchers have discovered that a small group of Ugandans seem to have natural protection against HIV.
- Thursday, May 22 - 2003 at 11:08
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Reference:Uganda Virus Research Institute, Entebbe, Uganda
Dr. Raouf Roshdi, Managing Director, WAW HealthThursday, May 22 - 2003 at 11:08 UAE local time (GMT+4)
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