Dengue Cases Rise in Florida as Mosquito-Borne Illness Spreads Locally

Health authorities have confirmed 39 locally transmitted dengue cases in Florida, bringing the state's total to 40 of the 893 cases reported across the United States this year. The infections were identified in Citrus, Pinellas and Hillsborough counties on the state's west coast.

Dengue, a viral disease spread by Aedes mosquitoes, typically causes fever, headache, rash and severe joint and bone pain. While most infections are mild, about one in 20 patients develop life-threatening complications such as bleeding, shock or organ failure.

The Centers for Disease Control and Prevention said the rise in locally acquired cases highlights "the need for enhanced surveillance, vector control, and public health preparedness and response efforts in areas with competent mosquito vectors." Researchers note that warming temperatures are expanding the range of Aedes mosquitoes, making much of the southeastern and southwestern United States suitable for their survival.

Public health officials advise residents to reduce mosquito breeding sites by eliminating standing water, use insect repellent, wear long sleeves and seek medical care promptly if symptoms develop. There is no specific antiviral treatment for dengue; care focuses on hydration and pain relief, typically with acetaminophen.