Travel Alert: Dengue Cases Linked to Pacific Islands

The Hawaii Department of Health has confirmed a new case of dengue fever on Oʻahu, marking the ninth case reported in the state for 2026. This particular case is travel-related, with the individual having been exposed to the virus in a region where dengue is prevalent.

What is Dengue Fever?

Dengue fever is a mosquito-borne illness that can cause symptoms ranging from mild to severe, including fever, nausea, vomiting, rash, and body aches. The disease is not endemic in Hawaii, but cases have been linked to travel to areas where dengue is common, including the Marshall Islands and other Pacific Island nations.

Who is Affected?

All nine dengue cases reported in Hawaii this year have been associated with travel to Pacific Island countries. The Department of Health has indicated that there is no connection between the latest case and previous cases in the state, and they are actively monitoring the situation.

Precautions for Travelers

Travelers planning to visit areas where dengue is common should take necessary precautions. The Department of Health advises checking country-specific guidance on dengue risk before traveling. Recommended measures include:

• Using insect repellent registered with the Environmental Protection Agency.
• Wearing long-sleeved shirts and long pants outdoors.
• Staying in air-conditioned accommodations or using mosquito nets while sleeping.

Additionally, travelers returning from affected areas should continue to prevent mosquito bites for three weeks after their return and seek medical attention if they develop symptoms.

Conclusion

As dengue fever poses a risk in tropical regions, including the Marshall Islands, travelers should remain vigilant and follow health advisories. The Hawaii Department of Health continues to monitor the situation and emphasizes the importance of mosquito control to prevent local transmission.