Ninety percent of Africans were found to carry a gene variation that evolved to protect them from malaria but that increases their chances of being infected with HIV; the gene also prolongs their life expectancy if they contract the virus.
Ninety percent of Africans were found to carry a gene variation that evolved to protect them from malaria but that increases their chances of being infected with HIV; the gene also prolongs their life expectancy if they contract the virus.