Event Brief
UPDATED Oct 9, 2026 at 2:20 PM ET
Oct 8, 2026 at 1:20 PM ET
Florida Reports 296 Local Dengue Cases in 2026
By The BriefBrief · Sources (1)
The Florida Department of Health has confirmed 296 locally acquired dengue cases in 2026, with nearly 88% in Hillsborough County; one death has been confirmed there. County officials say pending lab results may raise the count. Twenty mosquito pools in eight counties tested positive, and cases rose from 21 in July to 154 in August before reaching 121 in September.
WHO: Florida Department of Health; Hillsborough County officials; residents in affected Florida counties
WHAT: Florida has confirmed 296 locally acquired dengue fever cases in 2026, most concentrated in Hillsborough County.
WHEN: Reported 2026
WHERE: Hillsborough County, Florida
WHY: Dengue is spread by Aedes mosquitoes; the source reports positive mosquito pools across eight counties as evidence of the virus's presence.
How this story developed (showing 2 of 2 earlier reports)
How this brief is built: The BriefBrief uses multi-source information fusion to correlate reporting across sources, identify related developments, and continuously update a structured WHO, WHAT, WHEN, WHERE and WHY event picture. Pattern arcs, source analysis, and velocity indicators provide deeper analysis in our MI Console.
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