I am not sure what the current estimates are, but 10 years ago some experts believed that up to 8% of African American males and 4% of European American males were immune. They had these numbers because of HIV outbreaks in San Francisco. One man would be HIV free and all of his partners would be infected or dead. As far as I know, they have no numbers for American women.
Scientists have discovered female prostitutes in Africa that are immune. But, because they are living in areas where they have lived their entire lives, experts don’t have a feel for the African population as a whole. I get the impression that most HIV researchers feel more Africans are immune than Americans.
There is the UK man that tested positive 3 times, then tested negative later. This is still a mystery.
Last I read -this may have changed- People are immune 1 of 2 ways. 1) They have T-cells that can bind to the HIV and kill it. 2) They have no binding site on their T-cells so HIV has no way to attach and replicate. The prostitutes in Africa have the T-cells that can kill HIV. They have found men that don’t contain binding sites, I don’t know more than that. I need to read up ;-)
Some scientists believe HIV swept through Africa (maybe a few times) killing large populations –this would explain a lot. I have read that direct descendants of plague survivors are immune.
Drs don’t know if the gene therapy guy is cured, and we have a journalist, not a scientist, writing the article –I wouldn’t read too far into it. Using a word like cured is just more interesting for readers and a common misuse refering to HIV-
News 
Market Data 
Discover 
AI
