The Hawaii Department of Health announced a second travel-related dengue case in 2026, occurring on Oahu. This follows a case identified 10 days earlier on Maui. Both individuals contracted the virus while traveling in regions where dengue is prevalent. Officials are conducting inspections and implementing mosquito control measures on Oahu without specifying the exact locations.
Dengue, a viral illness spread by mosquito bites, is not endemic to Hawaii despite the presence of Aedes mosquitoes, which can carry the virus. The illness is prevalent year-round in many tropical and subtropical areas worldwide, including parts of Central and South America, Asia, the Middle East, Africa, Puerto Rico, and some Pacific Islands.
The Department of Health advises travelers returning from dengue-endemic regions to take measures to prevent mosquito bites for three weeks. If symptoms such as fever, nausea, vomiting, rash, and body aches appear within two weeks of returning, individuals are encouraged to seek medical evaluation.
Residents suspecting a dengue infection should contact the Department of Health’s Disease Reporting Line at 808-586-4586.
