MemoryStone |
Things that I keep... ...and some that haunt me late at night. |
A genetic variant peculiar to Africans substantially raises their risk of infection with HIV, according to research that suggests evolved susceptibility may be helping to drive the continent’s Aids epidemic. The 90 per cent of Africans who carry the DNA variation are 40 per cent more likely to contract HIV than those without it, after similar exposure to the virus, scientists from Britain and America have found.