Following a sharp surge in dengue fever cases across Florida, Hillsborough, Pasco, and Pinellas counties declared local states of emergency on September 24, 2026. Health officials advise residents to eliminate standing water, wear mosquito repellent, and monitor for symptoms amid ongoing regional control operations.
Regional Emergency Declarations Across Tampa Bay Counties
Local governments across the Tampa Bay region responded to the mosquito-borne viral infection by enacting simultaneous emergency orders on September 24, 2026. Hillsborough County Administrator Bonnie Wise signed an executive order under the authority of the County’s Emergency Management Ordinance and Chapter 252, Florida Statutes. Neighboring Pasco County officials announced their own local state of emergency during a Thursday morning news conference, while the Pinellas County Board of County Commissioners authorized a parallel declaration for Administrator Barry A. Burton.
By invoking emergency powers, county leaders gain the authority to waive routine administrative procedures, expedite emergency expenditures, and swiftly deploy mosquito control operations. The official emergency status establishes a formal administrative pathway for local municipalities to seek federal reimbursement for disaster-related expenses.

Case Disparities and Active Mosquito Surveillance
The administrative actions follow widely disparate case counts reported by state health authorities. Last week, the Florida Health Department confirmed two cases of dengue fever in Pasco County. In stark contrast, neighboring Hillsborough County recorded 134 cases.
According to reporting compiled from health agencies, many infected individuals experience no symptoms or only mild illness, meaning the actual number of people carrying the virus likely exceeds official tallies.
Public Health Guidance and Vector Control Measures
As mosquito control districts ramp up heightened surveillance and targeted aerial treatments, health officials have issued practical prevention guidelines for residents living in affected neighborhoods. Communities can access online resources provided by local management services to track where localized spraying occurs.

- Drain standing water around homes and commercial properties to eliminate breeding sites.
- Cover exposed skin and apply an EPA-registered mosquito repellent following product label instructions.
- Keep all doors and windows properly screened and maintained.
- Remain vigilant against mosquito bites during both daytime and nighttime hours.
Clinical Symptoms of Dengue Fever
According to World Health Organization guidance, symptoms typically emerge between four and ten days after a mosquito bite and persist for up to a week. While most patients recover fully within one to two weeks, the illness can manifest with severe complications.
The disease can cause fever, rash, headache, nausea, and severe pain, while some infected people show no symptoms, which could mean that the actual number of infections is greater than the announced cases. And (Aedes) mosquitoes spread, which also transmit Zika and yellow fever.
Warning signs of severe dengue often appear after the initial fever subsides. These critical indicators include severe abdominal pain, persistent vomiting, rapid breathing, bleeding gums or blood in vomit and stool, extreme fatigue, and cold, clammy skin. Individuals displaying these severe symptoms are advised to seek immediate medical attention.