Some achievements come from building something visible. Others come from watching for thirty years even though there is nothing to see. Chile’s approach to leprosy belongs to the second kind.
On March 4, 2026, the World Health Organization confirmed that Chile has become the first country in the Americas to have eliminated leprosy. The last locally acquired case was diagnosed in 1993. Since then, not a single case has originated within the country. Between 2012 and 2023, 47 cases were reported nationwide. None were locally acquired. All came from outside.
The story of the disease in Chile begins on Rapa Nui, Easter Island. Leprosy first appeared there at the end of the 19th century. Mainland Chile was barely affected. On the island, the last secondary cases were managed in the late 1990s. After that, the disease vanished from daily life.
What sets Chile apart is not the disappearance. It is the refusal to forget. Leprosy remained a notifiable condition. Primary care centres stayed trained and ready. Every suspected case was referred to specialists. Follow-up care, physiotherapy, and rehabilitation stayed in place. Not because they were needed. But because they might be.
Patricia Contreras, head of the Department of Communicable Diseases at Chile’s Ministry of Health, explains: When you reach this level of elimination, the biggest challenge is maintaining awareness. Even if we see very few cases, we must be prepared to recognise a case and respond to it.
Health Minister Ximena Aguilera called the confirmation a result of decades of work in prevention, early diagnosis, treatment, and follow-up. Chile is the second country worldwide to achieve this status, after Jordan.
You do not celebrate the elimination of a disease by cutting a ribbon. You celebrate it by thanking the people who never stopped looking for something that was no longer there.