Florida is confronting its most significant dengue fever outbreak in decades, with health officials confirming 485 locally acquired cases this year. The Tampa Bay area is particularly affected, accounting for approximately 95% of the state's reported infections.
In response to the escalating situation, Hillsborough, Pasco, and Pinellas counties declared states of local emergency in late September. These declarations enable expedited procurement of resources, facilitate spraying efforts, and support requests for state and federal aid. Hillsborough County has since extended its emergency status due to ongoing transmission.
These locally acquired cases are distinct from over 300 travel-associated dengue infections reported in Florida this year. The Florida Mosquito Control Association has intensified efforts, including targeted ground spraying, aerial applications, and localized property inspections, to combat the spread.
Dengue fever is a viral illness transmitted primarily by the bite of infected Aedes aegypti and Aedes albopictus mosquitoes. Symptoms can include fever, severe muscle and joint pain, nausea, and rash. In severe instances, the illness can lead to dangerous complications or be fatal, according to the Centers for Disease Control and Prevention.
Unlike many mosquito species, the Aedes mosquitoes that carry dengue are active during the day and thrive in warm, humid residential environments. Public health officials emphasize that these mosquitoes breed in standing water, even small amounts, found in containers like birdbaths, gutters, planters, and discarded tires. Residents are urged to regularly inspect their yards and eliminate or cover such water sources.
To mitigate risk, health authorities recommend applying EPA-registered insect repellents, wearing protective clothing like long sleeves and pants when outdoors, and promptly draining or covering any outdoor containers that can hold water.
While most dengue infections result in mild or no symptoms and resolve within two weeks, severe dengue can progress rapidly. Warning signs of severe illness include persistent vomiting, severe abdominal pain, difficulty breathing, bleeding from the gums or nose, and extreme lethargy. Individuals experiencing these symptoms should seek emergency medical care immediately.