Very few people have this genetic variation, which some scientists think has been inherited from ancestors who survived the massive bubonic plague in Europe centuries ago.
About 1% of Caucasians have it, and it is even rarer in Native Americans, Asians, and Africans.
At least one genetic testing company, 23And still does the HIV immunity test (among their battery of tests, not as a stand alone), though many companies that once catered specifically to gay men for the HIV immunity test have closed down.
There might, indeed, be a light at the end of the tunnel.
How soon they find it, though, is still very much up in the air.
A 2005 report indicated that 1% of people descended from Northern Europe are virtually immune to AIDS.
Those lucky enough to be resistant must inherit the HIV-shielding genes from both parents, though having only one parent with the mutation still leaves a child better prepared to defend HIV than having none.
The consortium of academic and private sector research institutions of defeat HIV — a Delaney Cell and Genome Engineering Initiative — are hoping to use stem cells from HIV-positive individuals to mimic the genetics of humans immune to HIV.