Cambodia is the first Asian country to hit the UN's 95-95-95 HIV target. Here is what that means

Cambodia has become the first country in Asia to reach the United Nations 95-95-95 target for HIV, a benchmark that several wealthier Asian nations have not cleared [1].

The three numbers describe a chain. The first 95 means 95 percent of people living with HIV know they have it. The second means 95 percent of those diagnosed are on antiretroviral treatment. The third means 95 percent of those on treatment have the virus suppressed to undetectable levels [1]. Because the numbers stack, each one applies to the group that cleared the one before it, so hitting all three means the great majority of everyone living with HIV in the country is diagnosed, treated, and no longer able to transmit the virus. A person who is virally suppressed does not pass HIV to sexual partners.

Reaching that point is what public-health officials mean when they say an epidemic is being controlled. The target was set by the United Nations as the threshold at which new infections fall steeply enough to bend the curve of the epidemic downward. Cambodia reached it in June [1].

The detail that makes this notable is who got there. Cambodia is a lower-middle-income country, and it cleared a bar that richer nations in the region have not [1]. That ordering says something about where the hard part of the fight now sits. The medicine is the same everywhere. The testing is not exotic. What separates a country that reaches 95-95-95 from one that stalls short is often whether people will come forward to be tested and stay in treatment.

That is why the workers who delivered the milestone do not point to budgets when asked what is left. "The No. 1 challenge continues to be stigma," said Sohn [1]. Stigma is what keeps a person from taking a test, from picking up a prescription, from telling a clinic the truth. It is the obstacle that money alone does not remove, and it is the one still standing after Cambodia hit every numerical mark.

The milestone is real and worth stating plainly: most Cambodians living with HIV are now diagnosed, treated, and virally suppressed, and the country got there ahead of its wealthier neighbors. The unfinished part is honest too. The 5 percent still outside the chain at each step are the hardest to reach, stigma is the reason many of them stay there, and the rest of the region has yet to follow.