Long-term monitoring of people with HIV with an undetectable viral load has shown that viral suppression is rarely lost, enforcing the validity of ‘U=U’ (Undetectable equals Untransmittable) messaging, according to Italian research published in the online edition of AIDS. The study involved over 8000 HIV-positive individuals taking antiretroviral therapy (ART) and with viral suppression (a viral load below 200) at baseline. Regular monitoring of viral load (at least twice a year for most) showed that viral load remained suppressed 97% of the time.
However, some groups, including women, people who inject drugs and those with a past history of ART failing to control viral replication spent more time with a viral load above 200. The investigators suggest that people with these characteristics may need more support to maintain viral suppression.
“We found that in our population of people with HIV the ‘U’ status was maintained on average, for 97% of the following ten years of observation and the proportion of [time] spent in ‘U’ status showed a trend for an increase in recent years,” write the authors. “This data reassuringly suggests that U=U is an appropriate message to communicate to help decrease stigma and increase motivation to remain virally suppressed.”