The simultaneous circulation of dengue serotypes DENV-2 and DENV-4 has been confirmed in Ranchuelo, Villa Clara.
More than 5,000 people are under surveillance, with 12 patients admitted to an isolation facility.
More than 10,300 screenings have been carried out, along with fumigation in 562 homes.
The situation is being worsened by power outages, water shortages, and accumulated waste, which are hindering efforts to control the Aedes aegypti mosquito.
People are advised to seek medical care if they develop fever. Residents of Manicaragua, Santa Clara, Placetas, and Sagua la Grande are also being alerted.
