Kuala Lampur, July 31 -- Almost two decades ago, I stood at the frontlines of Malaysia's HIV epidemic - a time when fear, stigma and silence ruled the discourse around drug use and HIV. The data was grim: some 70 per cent of new HIV infections were among people who inject drugs (PWIDs). We were losing lives, and our response was fragmented at best. We knew something had to change.

What followed was bold and unprecedented. With the support of allies across the Ministry of Health, civil society, law enforcement and religious leadership, we launched the Needle and Syringe Exchange Programme (NSEP) in 2006. At the time, it was politically unpopular. Critics worried it would condone drug use. But we persisted, because science and humanity dem...