9th Traveler Visits Hawai'i With Dengue Virus

The Hawai‘i Department of Health (DOH) recently confirmed its ninth travel-related case of dengue in 2025.

As of the end of June 2025, the DOH reported eight dengue cases on Oʻahu and one case on Maui.

Several countries in the Pacific Region are reporting an increase in mosquito-transmitted dengue virus cases, including Fiji, French Polynesia, Tonga, and the Republic of the Philippines.

According to the World Health Organization, dengue is a grade 3 emergency, with an estimated 4 billion people at risk globally. 

The U.S. Centers for Disease Control and Prevention (CDC) reissued a Global Travel Health Notice on June 18, 2025, regarding dengue outbreaks in the Asia/Pacific region, including India, Singapore, Thailand, the Philippines, Malaysia, and Myanmar. 

CDC reported on July 3, 2025, that 2,248 travel-related Dengue cases and two local cases in Miami, Florida, were reported in 41 jurisdictions this year.

While the CDC currently authorizes the first-generation dengue vaccine for use in Puerto Rico, where dengue has become endemic, numerous countries enable access to a second-generation vaccine in 2025. Additionally, innovative dengue vaccine candidates are making progress in late-stage clinical trials.