Three Florida counties declare emergencies as dengue cases rise

Three counties in Florida – Hillsborough, Pinellas and Pasco – have declared states of emergency to speed up mosquito-control actions as dengue fever spreads across the region. The emergency orders, which last seven days unless renewed, allow officials to expedite vector-control operations, make emergency purchases and seek state or federal assistance, according to county news releases.

The Florida Department of Health reported 190 locally acquired dengue cases in six counties through Sept. 19, with 170 of those in Hillsborough County. The count excludes travel-related infections reported elsewhere in the state.

Dengue, a mosquito-borne viral illness, can cause fever, severe aches, rash and, in rare instances, life-threatening complications, the Centers for Disease Control and Prevention notes. An entomologist at the SC Johnson Center for Insect Science and Family Health said the Aedes mosquitoes that transmit dengue are active during the day and thrive in Florida’s warm, humid climate. The expert added that residents should stay aware of local mosquito activity and consistently protect against bites.

The Florida Mosquito Control Association said crews are increasing aerial and ground treatments in areas with confirmed virus activity and are inspecting private properties for breeding sites. Officials advise residents to eliminate standing water in containers such as buckets, planters, tires and other objects that can hold even small amounts of water.

Preventive recommendations include using EPA-registered insect repellent, applying sunscreen before repellent, wearing long sleeves and light-colored clothing, and protecting against mosquito bites throughout the day, as Aedes mosquitoes are day-biters. Symptoms typically appear four to ten days after a bite, and most infected individuals recover within one to two weeks, though severe dengue can develop rapidly and require medical attention.