The Hawai‘i Department of Health (DOH) identified a new travel-related dengue virus case on Oʻahu, bringing the number of total cases to 12 identified in the state in 2024 (one on Kauaʻi, three on Maui, eight on Oʻahu). The affected travelers were exposed in various countries where dengue is common.

Dengue virus is spread from infected person to mosquito to person. While Hawai‘i is home to the type of mosquitoes that can carry dengue, the disease is not endemic here in the state and cases are currently only seen in travelers.

Symptoms of dengue typically may be mild or severe and include fever, nausea, vomiting, rash and body aches. Symptoms typically last two to seven days and although severe and even life-threatening illness can occur, most people recover after about a week.

In areas of suspected or confirmed dengue, Hawai‘i DOH personnel (Vector Control Branch) conduct inspections and mosquito-reducing activities. Reducing mosquito populations reduces the chances of dengue being transmitted to other people.

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