In late June 2025, the Florida Department of Health in Hillsborough County announced a locally acquired case of dengue fever, prompting health officials to be vigilant for potential spread of the virus by mosquitoes in the greater Tampa area.
On August 27, 2025, the Florida Department of Health in Pasco County informed residents of a confirmed human case of locally acquired dengue. This area is located on Florida’s west coast, adjacent to Tampa, and west of Orlando.
In response to this finding, surveillance and prevention efforts were conducted by conducting aerial spraying to help reduce the mosquito population.
According to state officials, there have now been 16 cases in 2025, with Florida’s east coast counties of Brevard (11) and Miami-Dade (3) leading the way.
Additionally, the Florida Department of Health published its Arbovirus Surveillance update #34 on August 23, 2025, reporting a total of 171 travel-associated dengue cases this year. Most of the cases (99) are related to people who traveled to Cuba.
As of August 30, 2025, only Puerto Rico offers dengue vaccinations in the United States. Outside the U.S., various countries provide a second-generation dengue vaccine that is generally effective against two of the four dengue virus types.