Florida state health officials reported four additional cases of locally acquired dengue were in the past week from Broward (2) and Miami-Dade (2) counties.
This brings the total to 10 so far in 2023–in Miami-Dade (8) and Broward (2) counties, with onsets in January, March, June (3), and July (5).
Seven of the cases were identified as dengue virus type 3 (DENV-3) and three were identified as dengue virus type 2 (DENV-2).
Dengue fever is an important mosquito-borne disease worldwide. It is caused by four related dengue viruses (DEN-1, DEN-2, DEN-3, DEN-4) that are related to the viruses that cause West Nile infection and yellow fever.
Until 2009, there were no reports of dengue acquired in Florida since 1934. In 2009 -2010, an outbreak of dengue was identified in Key West. A total 22 persons were identified with dengue fever in Key West during the summer and fall of 2009. In 2010, 66 cases of locally acquired dengue associated with Key West were reported in Florida with onset dates between March and November 2010.
There was also a Martin County outbreak in 2013. In 2020, dengue transmission was detected in Key Largo.
In 2022, 68 cases of locally acquired dengue were reported–Collier, Broward (2), Miami-Dade (64), and Volusia counties.