
After almost two decades of research puzzling over why some people are naturally resistant to AIDS, scientists at the University of Rochester Medical Center have discovered that some people carry special enzymes that "edit" the AIDS virus and prevent it from progressing. The enzyme, called A3G, exists in some people's white blood cells and works to alter the genetic code of the HIV virus and interferes with the virus's replication. Unfortunately the AIDS virus is already gaining resistance to A3G and researchers are now working to develop a new class of drugs that strengthens the enzyme and makes it portable to people who don't have natural resistance.
According to a university press release: