Florida dengue outbreak reaches 368 locally acquired cases

Florida’s dengue outbreak has moved beyond the more than 250 locally acquired cases. State surveillance figures reported by WUSF put the 2026 total at 368, with Hillsborough County still the center of transmission and neighboring Pinellas County recording a sharp increase.

Hillsborough and Pinellas extended their local dengue emergencies through Oct. 22, according to WUSF’s Oct. 15 report. Crews are conducting ground and aerial mosquito-control operations, while Tampa officials have gone door to door in affected neighborhoods. For travelers, this is a local mosquito-exposure problem, not simply a count of infections brought home from overseas.

Where Florida’s dengue cases are concentrated

The Florida Department of Health surveillance report covering Oct. 4-10 recorded 72 new locally acquired infections statewide, according to WUSF. Hillsborough added 51 cases, bringing its total since July to 310. Pinellas added 17, increasing its count from 20 to 37. Pasco added one and had four.

More than 350 of Florida’s locally acquired cases were in Hillsborough, Pinellas, Pasco and Polk counties, WUSF reported. That concentration matters when assessing a trip: the reported outbreak is centered in the Tampa Bay region, rather than distributed evenly across Florida. Health officials also cautioned that the actual number of infections is likely higher because many infected people have no symptoms and never get tested.

The state separately recorded 288 dengue cases associated with international travel this year, according to the surveillance report cited by WUSF. Those are a different category from locally acquired infections. WUSF explained that transmission typically occurs when a female Aedes mosquito bites an infected person, acquires the virus and subsequently passes it to someone else through a bite.

What the emergency response involves

The emergency declarations give counties access to state resources for mosquito control, according to the Tampa Bay Times. Its report described a response involving mosquito-control treatments, inspections for standing water and assistance from neighboring counties. Hillsborough officials said mosquito services had cost more than $4.1 million to date.

Pinellas is deploying fogging trucks and a larvicide truck daily, weather permitting, WUSF reported Oct. 15. Truck fogging can begin as early as 11 p.m. Lee County Mosquito Control has supplied equipment, and Pinellas has contracted additional trucks from Illinois-based Clarke Mosquito Services for overnight treatments.

Hillsborough Mosquito Management is working around the clock with help from Pasco, Manatee and Brevard crews, according to WUSF. Its response includes aerial and ground spraying, alongside neighborhood outreach. These operations are part of the continuing effort to reduce transmission; personal bite prevention remains central to the traveler guidance published by The Points Guy.

Tampa’s outreach has targeted specific areas. In its neighborhood-outreach report, WUSF described inspectors and code enforcement officers distributing information on Oct. 9 in Southeast Seminole Heights, North Hyde Park, West Tampa, Forest Hills and Sulphur Springs. Workers urged residents to remove standing water and placed mosquito-larvae control tablets in the large bodies of water they encountered.

Build mosquito protection into the trip

The Points Guy’s assessment is that the outbreak does not automatically warrant canceling Florida travel, but it does call for extra precautions, particularly around Tampa. It reports that there is no widely available dengue vaccine. Avoiding bites is therefore the main protective measure its travel guidance emphasizes.

Health officials recommend a federally registered insect repellent containing DEET, picaridin, IR3535, oil of lemon eucalyptus or another recommended active ingredient, according to WUSF. Long-sleeved shirts and long pants provide additional protection outdoors. Tampa officials also recommend using air conditioning and keeping screens on windows, WUSF reported in its neighborhood-outreach coverage.

For someone choosing accommodations, those recommendations make screened windows and air conditioning useful features to check. At a vacation rental, the same standing-water checks urged by local officials are relevant: buckets, pet dishes, outdoor toys, gutters and containers can collect water. WUSF reported that Tampa officials warned even a bottle cap holding water for a week can provide a mosquito breeding site.

Do not reserve those precautions only for wilderness outings. The Tampa Bay Times cited a University of Florida study that found mosquito bites frequently occurred during ordinary activities close to home, including dog walking and gardening. The study also found that people who spent more time outside during evening hours were more likely to report bites. An everyday outdoor routine deserves attention, too.

Recognize dengue symptoms, especially after a fever breaks

Dengue is a mosquito-borne viral infection. Most infected people experience mild or no symptoms and recover in one or two weeks, although fatigue can last longer, according to The Points Guy. Some develop severe dengue, which can be life-threatening and requires hospitalization. People who have previously had dengue face a higher risk of severe illness.

The Points Guy lists high fever, severe headache or pain behind the eyes, muscle and joint pain, nausea or vomiting, swollen glands and rash among the symptoms travelers should recognize. Its guidance makes an important distinction: severe symptoms often develop after the fever subsides. A falling temperature is not, by itself, proof that the illness is over.

Seek immediate medical attention for warning signs of severe dengue, The Points Guy advises. These include severe abdominal pain, persistent vomiting, rapid breathing, bleeding gums or nose, blood in vomit or stool, extreme thirst, cold and pale skin, or feeling weak. The publication also lists fatigue and restlessness among severe-dengue symptoms.

Florida’s warm climate allows mosquitoes to remain active year-round, according to The Points Guy. Its recommendation to continue traveling with precautions is not a promise of no risk. With local transmission concentrated around Tampa Bay and emergency mosquito-control work continuing, repellent, protective clothing and recognition of serious symptoms belong in the trip plan, not on an optional packing list.