According to reports by Maui Now, the Hawaiʻi Department of Health has identified a new travel-related case of dengue on Oʻahu, bringing the total number of statewide cases to nine so far in 2026.
Details of the Oʻahu Infection
Health officials stated that the individual was exposed to the virus while traveling to a region where dengue is common. Investigators have found no epidemiological link between this latest diagnosis and any previous cases recorded in Hawaiʻi. All nine cases documented this year have involved travel to Pacific Island countries and territories.
In response to the detection, Department of Health response teams deployed to the affected area to inspect for potential mosquito breeding sites and conduct mosquito control operations. The agency noted that the risk of local transmission remains low.
Prevention and Standing Water Removal
Following recent heavy rainfall, health authorities are strongly urging residents to eliminate standing water around homes and workplaces. Mosquitoes require only minimal amounts of water to breed, and removing these hazards helps lower the risk of spreading mosquito-borne illnesses.
Common breeding grounds include:
- Buckets and small containers
- Bromeliads and other water-catching plants
- Planters and rain barrels
- Cups and discarded items left outside
Residents seeking further guidance can reach out to the department’s Vector Control Branch.
Global Risk and Travel Advisory
While Hawaiʻi features mosquitoes capable of transmitting the virus, dengue is not endemic to the state, meaning infections remain limited to incoming travelers. Health officials emphasize that dengue presents a year-round risk across various tropical and subtropical regions, spanning parts of Central and South America, Asia, the Middle East, Africa, and numerous Pacific and Caribbean destinations.
Travelers are advised by the department to review country-specific health guidance on the Centers for Disease Control and Prevention (CDC) travel website at least four to six weeks prior to departure.
Symptoms and Medical Guidance
Individuals returning from regions with active dengue risk should continue taking measures to prevent mosquito bites for three weeks. Anyone who exhibits symptoms within two weeks of returning from travel should seek immediate medical evaluation.
Typical symptoms include:
- Fever
- Nausea and vomiting
- Rash
- Body aches
While symptoms generally last between two and seven days and most individuals recover within a week, severe illness can occasionally develop. Healthcare providers and individuals suspecting a dengue infection can contact the Department of Health’s Disease Reporting Line at 808-586-4586.