Dengue in Cuba: Increase in Suspected Cases and Circulation of Multiple Serotypes

August 30, 2026

By Fundación iO Team

An increase in suspected dengue cases has been reported in Cuba, with provinces such as Santiago de Cuba, Sancti Spíritus, and Holguín among the most affected. The situation is exacerbated by infrastructure problems such as water leaks, garbage accumulation, and a lack of medication.

There are complaints about the scarcity of prevention campaigns and medications. Activists and residents point to the lack of official response and clean-up efforts in neighborhoods. The simultaneous circulation of three serotypes of the virus (DEN-2, DEN-3, and DEN-4) has been confirmed, increasing the risk of severe forms.

Authorities have identified the highest risk in Havana, Matanzas, Cienfuegos, Villa Clara, Ciego de Ávila, Santiago de Cuba, and Guantánamo. In Pinar del Río, febrile syndromes increased by 17.8% in the last week, with the largest increases in San Luis, San Juan y Martínez, Guane, Pinar del Río, and Mantua.

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