The Hawai‘i Department of Health (DOH) has identified a new travel-related dengue virus case on Oʻahu, bringing the total number of dengue cases in the state to three for 2026. The affected individual was exposed to the virus while traveling in a region where dengue is common.

DOH teams have been deployed to conduct inspections and implement mosquito control measures in the affected area.

Dengue virus is transmitted from an infected person to a mosquito, then to another person. While Hawai‘i is home to the mosquitoes that can carry dengue, the disease is not endemic in the state and cases are currently limited to travelers.

Symptoms of dengue can range from mild to severe and include fever, nausea, vomiting, rash and body aches. Symptoms typically last two to seven days and while severe illness can occur, most people recover within a week. Individuals who have recently traveled and are experiencing these symptoms should contact their healthcare provider.