The Hawai‘i Department of Health (DOH) has confirmed a new travel-related dengue virus case on Oʻahu, bringing the total number of dengue cases in the state for 2025 to three. The affected individual in this current case was exposed to the virus while traveling in a region where dengue is common.

Dengue virus is transmitted from an infected person to a mosquito, and 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.

In 2024, there were 16 travel-related cases of dengue reported in the state of Hawaiʻi. Cases reported travel to the following countries prior to symptoms onset: Brazil, Argentina, Costa Rica, El Salvador, Guatemala, Mexico, Puerto Rico, Honduras, Indonesia, Thailand, Japan, Philippines and India.

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.

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