The Hawai‘i Department of Health (DOH)  confirmed a new travel-related case of dengue virus on Oʻahu, bringing the total number of cases reported in Hawai‘i in 2025 to nine (eight on Oʻahu, one on Maui). The individual was likely exposed to the virus while traveling in a region where dengue is common.

Dengue virus is spread when a mosquito bites an infected person and then bites another individual. Although Hawai‘i has mosquitoes capable of transmitting dengue, the disease is not currently endemic in the state. All confirmed cases in 2025 have been travel-related.

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.

In areas with suspected or confirmed dengue cases, DOH personnel from the Vector Control Branch (VCB) are conducting inspections and mosquito-reduction activities.

For more information, visit the Disease Outbreak Control Division (DOCD) and Vector Control Branch (VCB) websites.