Malaria was once endemic across much of the Caribbean. This map illustrates the extent of the advancement achieved, highlighting the malaria-free islands in green.Some of these islands were officially recognized by the WHO for eradicating the illness many years ago. This requires, among other things, zero indigenous cases for three consecutive years. Historical milestones include Grenada and Saint Lucia in 1962, Trinidad and Tobago in 1965, Dominica and Jamaica in 1966, and Cuba in 1973.Additional territories appear on the WHO registry of nations that never experienced malaria, alongside those where the condition vanished spontaneously without any targeted eradication initiative.Positioned centrally are Haiti and the Dominican Republic, which together occupy the landmass of Hispaniola. These represent the final Caribbean island nations sustaining endemic malaria.The Dominican Republic is significantly nearer to stamping out the disease, having documented roughly 1,200 native cases in 2024, contrasting with nearly 38,600 in Haiti. But its success depends on Haiti’s too, because malaria doesn’t stop at the border. Consequently, defeating malaria demands collaborative actions that span multiple nations.Explore further details regarding the evolution of malaria, alongside global strategies for ongoing advancement in combating it
Malaria elimination efforts in the Caribbean face a critical cross-border challenge on the island of Hispaniola, where starkly divergent infection rates between Haiti and the Dominican Republic threaten regional progress. While much of the Caribbean has successfully eradicated the mosquito-borne disease over the past several decades, Hispaniola remains the final pocket of endemic transmission in the region.
The Historical Decline of Malaria Across the Caribbean
Malaria was once endemic across large swathes of the Caribbean before sustained public health campaigns pushed the disease out of most island nations. According to the World Health Organization (WHO), achieving official malaria-free certification requires a country to demonstrate zero indigenous cases for three consecutive years.
Pioneering islands cleared the disease early in the latter half of the 20th century. Grenada and Saint Lucia achieved elimination status in 1962, followed by Trinidad and Tobago in 1965, Dominica and Jamaica in 1966, and Cuba in 1973. Other regional territories never recorded endemic malaria or saw the disease disappear naturally without targeted eradication campaigns.
Hispaniola: The Region’s Last Endemic Frontier
At the center of the Caribbean, Haiti and the Dominican Republic share the island of Hispaniola and stand as the region’s last island nations with endemic malaria. Public health trajectories on the shared island differ sharply between the two neighbors.
The Dominican Republic maintains a much lower burden, reporting approximately 1,200 locally acquired cases. Haiti bears the heavier share of the regional caseload, reporting nearly 38,600 cases.
Why Cross-Border Coordination Matters for Eradication
Public health experts emphasize that malaria elimination on Hispaniola cannot succeed through isolated domestic policies because the disease does not stop at national borders. Vector mosquitoes and infected travelers cross freely between Haiti and the Dominican Republic, meaning that sustained success in the Dominican Republic depends directly on controlling and reducing transmission rates within Haiti.
Regional health authorities note that true eradication across the Caribbean requires synchronized, cross-border interventions, joint surveillance, and shared vector-control resources to prevent re-infection in areas that have already achieved elimination.
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