Testing HIV positive is no longer a death sentence-a fact that stands as one of the great medical achievements of the twentieth century. The United Nations aims to diagnose 90 percent of all HIV infections worldwide by 2020, deliver antiretroviral therapy to 90 percent of those who test positive, and suppress the virus in 90 percent of those treated. If these goals are met, the AIDS epidemic could be over by 2030.
The UN strategy owes a significant debt to Canadian research-particularly that of Julio Montaner, who was among the first scientists to establish highly active antiretroviral therapy as the standard of care for HIV, back in the mid-1990s. Sustained use of HAART suppresses the virus’s ability to replicate, eventually decreasing the concentration of HIV cells in the blood to undetectable levels and delaying the onset of symptoms and eventual progression to AIDS.
Regrettably, our legal system has not kept pace with these advances.
Montaner conducts his research in Vancouver, which was among the hardest-hit communities in North America in the early ’90s. The British Columbia government soon became an enthusiastic supporter of HAART and quickly rolled out antiretroviral-therapy coverage across the province. Between 1996 and 2009, the number of people taking HAART increased more than sixfold. Accordingly, the rate of AIDS-related deaths in the province plummeted 80 percent.
In their efforts to treat the virus, the researchers had stumbled upon a way to control its spread, too: when antiretroviral treatment reduces the virus in a patient’s bloodstream, it also reduces the virus to undetectable levels in sexual fluids and dramatically decreases the risk of transmission. Studies indicate that, among gay men, an undetectable viral load decreases the risk for unprotected receptive anal sex from 1.4 percent to almost zero. When it comes to the spread of HIV, a low viral load (between zero and 0.05 viral copies per millilitre) is more effective at preventing transmission than wearing a condom is.