Why some people naturally control HIV even after stopping therapy—and how we can leverage that to treat others

For millions of people living with HIV, a daily regimen of medications is a lifelong necessity. If they stop taking the drugs—commonly referred to as antiretroviral therapy—the virus usually rushes back within weeks. But not for everyone; scientists have been baffled by rare individuals who, after stopping the drug regimen, keep the virus under control for months or even years.