Modern HIV medicine is based on a common genetic mutation. Now, researchers have traced where and when the mutation arose—and ...

With that powerful evolutionary selection force, the gene can become common in a population. Recently, scientists were astonished to find that some individuals did not become infected with HIV ...

Modern HIV medicine is based on a common genetic mutation ... "What's fascinating is that the variation disrupts an immune gene. It sounds negative, but it was likely beneficial.

What do a millennia-old human from the Black Sea region and modern HIV medicine have in common ... is that the variation disrupts an immune gene. It sounds negative, but it was likely beneficial.