Florida Dengue Outbreak Tops 150 Cases as Death Toll Includes First Fatality Since Sept. 4; Germany Reports Third 'Airport Malaria' Death

Since Florida confirmed the death of 80-year-old Gay Small on Sept. 4, the state's dengue outbreak has kept growing, and a separate mosquito-borne outbreak in Germany has added a third fatality.

Florida's Case Count Keeps Climbing

Small, of Hillsborough County, died of septic shock and multi-organ failure after contracting dengue, according to the Florida Department of Health, which confirmed her death on Sept. 4 following an investigation. The Associated Press reported it is the first confirmed dengue death in Florida this year.

Her daughter, Anna Small, told Tampa's WFLA Channel 8 that her mother was healthy and active before the infection. "She met the wrong mosquito, and that's it," Anna Small said. The family believes Gay Small was originally infected years earlier while traveling abroad. A prior infection makes a second case far more likely to turn severe, according to health officials.

University of South Florida public-health instructor Kristi Miley told the Tampa Bay Times that Tampa Bay had not recorded a dengue death in nearly a century.

The case numbers keep moving. Florida's health department reported 111 locally acquired dengue cases statewide, with 95 in Hillsborough County, in an arbovirus report covering the week of Aug. 30 through Sept. 5. That was already an increase of 36 cases in Hillsborough from the prior week. By the time the AP filed its report, the statewide total had risen to 152 locally acquired cases, with more than 130 of them in Hillsborough County. This represents the second-highest annual total in state history, behind roughly 200 cases in 2023.

Hillsborough County spokesperson Chris Wilkerson told the AP the situation was unusual for the region. State Surgeon General Dr. Joseph Ladapo has called Hillsborough the "epicenter" of what he described as an "unusual increase" in locally acquired cases this summer.

Local transmission means someone caught the virus without leaving home, as opposed to picking it up while traveling. Michael Teng, an associate professor of medicine at USF Health, said that pattern is atypical. "We don't usually see locally acquired cases like we're seeing now," Teng told WUSF Public Media, noting dengue's nickname, "breakbone fever," for the severe joint pain it causes.

Hillsborough and Pinellas counties remain under mosquito-borne illness alerts. "Dengue does not stop at county lines," Pinellas County Mosquito Control Director Alissa Berro told Fox 13.

Hillsborough County crews have been spraying day and night and checking properties for standing water where the Aedes aegypti and Aedes albopictus mosquitoes that carry dengue can breed, according to Paolo Pecora, senior environmental scientist for Hillsborough County Mosquito Management Services. Pecora told the AP that recent mosquito sampling has not turned up the virus, which he said is a sign new infections may be slowing.

The AP reported that dengue is spread by a warm-weather mosquito that experts say is expanding its range because of climate change. University of Florida associate professor Michael von Fricken predicted the disease will become "somewhat the new normal" in the state. That is a broader claim about long-term trends, distinct from this year's specific outbreak, which Pecora and Teng attributed more directly to this season's weather conditions letting mosquito populations multiply. The sources do not establish that this year's outbreak specifically, as opposed to Florida's mosquito ecology generally, was driven by climate change, and no county or state official cited in these reports made that direct causal claim about the 2026 outbreak.

Worldwide, the World Health Organization has tallied more than 2.2 million dengue infections and nearly 1,200 deaths so far this year, according to the AP. In the U.S., the CDC has recorded nearly 1,500 locally acquired cases, the vast majority in Puerto Rico.

A Separate Outbreak in Germany

Health officials near Frankfurt Airport have confirmed a third death from what they call "airport malaria," a phenomenon in which an infected mosquito is transported aboard a plane or in luggage into a region where malaria doesn't normally circulate, then bites someone locally, according to The Sun and The Express.

The most recent victim was a resident of Schwanheim, just north of the airport, according to city officials cited by both The Sun and FOX 32 Chicago. An airport worker died from the disease in August. Neither victim had traveled to a malaria-endemic region or worked at the airport, city officials said.

City officials said both were infected with Plasmodium falciparum, the parasite behind the most severe form of malaria. Germany's Robert Koch Institute, the country's public health agency, said airport employees fell ill after exposure between July 4 and July 6. Fraport, the company that operates Frankfurt Airport, said six employees in total contracted the disease. "We have provided comprehensive information to all employees and encourage them to consult a doctor if they experience any symptoms," Fraport said.

Airport officials set mosquito traps around the property in July to try to contain the outbreak, according to The Sun. Malaria cannot spread person-to-person and requires a mosquito bite for transmission, meaning the outbreak's spread depends entirely on whether infected mosquitoes remain in the area. Officials have not publicly confirmed whether this remains a concern since the traps went up.

Neither outbreak is connected to the other. Florida's dengue surge and Germany's malaria cluster involve different mosquito species and different parasites or viruses. Both regions have seen tropical disease move into areas where health systems aren't built to expect it.