A small group of Ugandans were found to have natural HIV resistant. Quote from New Vision online,
“They have special white blood cells that can only be produced when the virus attacks the body. However, even with the most sophisticated tests, HIV could not be found in these individuals, implying that the virus had tried to infect them but the immune system kicked it out.”
But wait, there is no breakthrough yet.
(Link)New Vision Online, HIV-resistant Ugandans found.