El Salvador Eliminates Trachoma, the World's Leading Infectious Cause of Blindness
El Salvador is the first Central American country validated by WHO for eliminating trachoma, the world's leading infectious cause of blindness.
WHO validation, recognised again by PAHO in September, makes it the first in Central America
The World Health Organization has validated El Salvador as having eliminated trachoma as a public health problem. Trachoma is the leading infectious cause of blindness. Repeated infection scars the eyelid until the lashes turn inward and scratch the cornea. It is a disease of crowded housing and scarce water, and it is preventable.
El Salvador is the first country in Central America and the second in the Americas to reach this bar. WHO announced the validation on 13 July 2026. The Pan American Health Organization recognised it on 29 September 2026, alongside elimination milestones in Brazil, Chile, the Bahamas, and Turks and Caicos, at the 63rd Directing Council. We are publishing it now because that regional ceremony is the fresh public mark, and because the underlying surveys are the story, not the press-conference date.
Between 2023 and 2026 the country joined a PAHO elimination initiative financed by Canada, trained teams to international standards, and surveyed communities chosen for environmental and social risk. Assessors found no active transmission in children and no advanced trichiasis — the blinding eyelid damage — in adults in the areas they checked. The work also left behind water, sanitation and surveillance so the disease is harder to reintroduce. With this validation, El Salvador joins 64 countries recognised by WHO for eliminating at least one neglected tropical disease.
Key Facts
- WHO validation: 13 July 2026
- PAHO recognition: 29 September 2026
- First in Central America, second in the Americas
- Surveys 2023–2026: no active transmission found in assessed communities
- 64 countries have now eliminated at least one neglected tropical disease
- Sources: WHO, PAHO
Why This Matters
Elimination is a high bar. It is not a good year. It is evidence that transmission has stopped and that the health system can spot a return. El Salvador did it by looking in the places most likely to still have the disease, not by averaging the easy districts into a national smile.
What We Don't Know Yet
- Validation is not a promise that every future case is impossible
- Surveillance has to keep running after the certificate
- The July validation is older than our usual daily window; the September ceremony is why it is in today's file