The HIV response has changed dramatically over the past four decades. A diagnosis that once carried fear and uncertainty can now be managed with effective treatment. Antiretroviral therapy has saved millions of lives, reduced HIV related deaths, and allowed many people living with HIV to build families, careers, and futures. This progress remains one of the greatest achievements in public health.
However, a major challenge remains. Having medicines available does not automatically mean everyone who needs them will receive them. A person can know that HIV treatment exists and still not walk into a clinic. Someone can understand the importance of HIV testing and still avoid it because of fear of stigma. Another person may start treatment and later stop attending appointments because of financial difficulties, discrimination, mental health challenges, or circumstances that make regular healthcare access difficult.
This is why the HIV response must move beyond treatment access alone. The next phase of HIV work must focus not only on providing medicines but also on understanding the barriers that prevent people from reaching those medicines in the first place.
For many years, HIV programmes have rightly focused on testing more people, initiating treatment, and supporting viral suppression. These remain essential goals. However, the people who are not being reached often live in situations where traditional healthcare approaches may not fully respond to their realities. Some may avoid health facilities because they fear judgement. Some may have experienced discrimination in healthcare settings. Others may struggle with poverty, unstable housing, criminalization, or limited social support. These realities shape health outcomes.
This is where harm reduction becomes important. Harm reduction is a public health approach that recognises that people’s lives are complex and that health decisions are influenced by social and personal circumstances. It does not ignore health risks. Instead, it focuses on practical ways to reduce those risks while creating opportunities for people to access prevention, treatment, and support.
Within the HIV response, harm reduction has helped reach communities that are often missed by conventional healthcare systems. These include people who use drugs, people in correctional facilities, people experiencing homelessness, young people who fear disclosure, and other populations who experience barriers because of stigma and discrimination.
The challenge is not always whether HIV services exist. The challenge is whether people feel safe enough to use them. A young person may avoid an HIV testing centre because they fear being recognised. A person who uses drugs may avoid healthcare facilities because of previous experiences of judgement. Someone living with HIV may miss clinic appointments because they are struggling with transportation costs, food insecurity, or other daily pressures.
When health systems fail to understand these realities, even effective medical interventions may not achieve their full impact.
This is one of the key lessons from HIV implementation science. An intervention is not successful simply because it works under controlled conditions. It must also work in real communities and within the everyday experiences of the people it is designed to support. A medicine can suppress the virus, but only when a person can access it, trust the system providing it, and continue receiving care.
This is why community-based approaches are important. Peer educators, community organisations, pharmacists, healthcare workers, and local advocates often serve as the link between health systems and communities. They understand local challenges, communicate in ways people relate to, and create safer spaces where individuals can ask questions and seek support without fear.
Sometimes, the first step towards healthcare is not a clinic visit. It is a conversation with someone who listens and understands. For Nigeria, this approach is particularly important. The country has made progress in expanding HIV prevention, testing, and treatment services, but gaps remain. Some people continue to experience difficulties accessing prevention services, starting treatment, and remaining connected to care. Stigma remains one of the strongest barriers, especially among communities that already experience exclusion.
A person who fears being labelled may choose not to test. Someone who worries about disclosure may delay treatment. A community that feels judged may avoid healthcare programmes altogether. These challenges are not simply individual problems. They reflect the need for health systems to become more responsive and inclusive.
The future of HIV programming requires asking better questions. Who are we not reaching? Why are they being missed? What would make healthcare feel safer and more accessible for them? These questions can help move the HIV response from simply delivering services to building systems that people trust.
Ending HIV will not happen through medicines alone. Treatment remains the foundation of HIV care, but reaching underserved communities requires approaches that address the social realities affecting people’s ability to seek and continue care.
Harm reduction reminds us that people do not experience illness in isolation. They experience it within families, communities, workplaces, social networks, and economic realities. A successful HIV response must recognise the whole person and not only focus on the diagnosis. The goal is not only to make treatment available. The goal is to ensure that everyone who needs it can safely reach it, access it, and live a healthy life.