Scientists say they have found a way to disarm the AIDS virus in research that could lead to a vaccine. Researchers have discovered that if they eliminate a cholesterol membrane surrounding the virus, HIV cannot disrupt communication among disease-fighting cells and the immune system returns to normal. [...] 'By stealing cholesterol from the envelope of the virus, we can neutralize the subversion,' said Graham. 'We’ve broken the code; we can shut down the type of interference that HIV is having on the immune system.'