What if one number could protect your health and prevent new infections for an entire generation? – Written by Madaniyah Amorim
I am a PhD fellow from Mozambique in the Doctoral Program in Biosciences and Public Health at the Faculty of Medicine, Eduardo Mondlane University. I’m a clinical research assistant at HCM – pediatric research, working within the EDCTP3 funded and Complutense University of Madrid coordinated SUPPORT project. My research focuses on the SUPPORT1-PDM sub-study, which investigates post-discharge mortality among children living with HIV (CLHIV) aged 1–59 months through a multicenter prospective cohort in seven hospitals across Mozambique, Uganda, Zambia, and Zimbabwe. The study evaluates whether enhanced follow-up, guided by early and frequent point-of-care HIV viral load monitoring, improves adherence and reduces post-discharge mortality, with key outcomes including virological suppression at 6 and 12 months and mortality and/or readmission within one year.
Viral load measures the amount of HIV in the blood. It is the most important indicator of how well treatment is working. The goal is simple: get it as low as possible; turn it undetectable. And here is the breakthrough: undetectable = untransmittable (U=U). When a person living with HIV maintains an undetectable viral load, they cannot pass the virus to others. This is powerful. This is transformative!
Today, nearly 39 million people are living with HIV worldwide. With consistent treatment, most can achieve viral suppression, turning HIV into a manageable condition and dramatically reducing new infections. But the impact goes beyond individuals. In prevention of vertical transmission from mother to child (PMTC), viral load becomes a lifeline. Without treatment, the risk of transmission during pregnancy, childbirth, or breastfeeding ranges from 15% to 45%. With effective treatment and an undetectable viral load, that risk drops to below 5% and even under 1% in optimal conditions.
This is how we protect next generation. Understanding viral load empowers people to take control: taking treatment every day is not just about living longer. It is about protecting partners, safeguarding children and stopping HIV transmission altogether.
Every suppressed viral load means better health, zero risk of sexual transmission and a child born HIV-free. Viral load is more than a laboratory result. It is a shield. A decision point. A lifeline.
If we make viral load visible, understood, and prioritized, we move closer to a future where no child is born with HIV and where new infections become rare. Because behind every number, there is a life and sometimes, a future waiting to begin.
But knowledge alone is not enough; action is what saves lives. Ask about your viral load. Know your number. If you are under treatment, take it every day as prescribed. If you support someone living with HIV encourage adherence and help create an environment free of stigma.
Health systems, communities, researchers and families all have a role to play. Expanding access to viral load testing, strengthening counselling, and normalizing conversations about U=U can accelerate progress. Ending HIV is not out of reach! We already have the tools. Now, we must use them consistently, collectively, and with urgency.
