Florida dengue outbreak becomes largest in a US state in decades

· Science · United States

Florida's current dengue outbreak is the largest recorded in any U.S. state in several decades, according to the report. Dengue is a mosquito-borne viral infection spread primarily by Aedes aegypti, a species established in parts of the southern United States, and it can cause severe illness in a minority of cases. Outbreaks in the continental U.S. have historically been small and localised because transmission depends on mosquito populations and imported cases. A record-scale outbreak in a U.S. state raises questions about vector control capacity, surveillance and how climate and travel patterns are shifting the disease's range.

Why it matters：A record U.S. state outbreak signals that a traditionally tropical disease is gaining ground in temperate zones, with implications for public health preparedness and vector control.

Key points

  • Florida's outbreak is the largest in several decades of any U.S. state.
  • Dengue is spread mainly by Aedes aegypti mosquitoes.
  • U.S. outbreaks have historically been small and localised.

Sources (original reporting)

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