Maui Travel-Related Dengue Case Is Hawaiʻi’s 10th in 2026

The Hawaiʻi Department of Health reported a new travel-related dengue case on Maui on Oct. 21, bringing the state’s total to 10 cases in 2026. The affected person was exposed while traveling in a region where dengue is common, and officials found no connection to previous Hawaiʻi cases, according to KHON2.

Health department teams are conducting inspections and outreach in the area where the person lives, KHON2 reported. Officials expect the risk of transmission from this case to be low. That is a risk assessment, not a guarantee, and the department is asking the public to reduce mosquito breeding sites by eliminating standing water.

For travelers watching the Maui news, the important distinction is where exposure occurred. This is a travel-related infection identified on the island, not an announcement that the person contracted dengue there. KHON2 reported that dengue is not established in Hawaiʻi and that cases are currently limited to travelers.

What the Maui dengue case establishes

The Hawaiʻi Department of Health provided more specific travel context in its Oct. 21 announcement: All 10 cases reported in the state in 2026 involved travel to Pacific Island countries and territories. The department said it had deployed teams to inspect the affected area and implement mosquito control measures.

The exact Maui location was not disclosed, according to Yahoo News. Its report placed the statewide distribution at seven cases on Oahu, two on Maui and one on Kauai. Those are counts of reported cases, not evidence that infections were acquired on those islands.

The department’s explanation of transmission is straightforward: Dengue passes from an infected person to a mosquito and then to another person. Hawaiʻi has mosquitoes capable of carrying the virus, even though the disease is not endemic, or established, in the state. That distinction explains why a travel-related case still triggers a local mosquito-control response.

A low expected transmission risk does not make mosquito reduction irrelevant. The department said reducing mosquito populations lowers the risk of dengue spreading to others. Its response is directed at that potential transmission pathway, while its current assessment remains that cases are limited to travelers.

Three timelines travelers should keep separate

The health department’s guidance sets out different time frames for planning, preventing bites after travel and responding to symptoms. They serve different purposes; the return flight is not the end of the recommended precautions.

Before departure: The department advises travelers to review current, country-specific health information at least four to six weeks before traveling. It points travelers to the Centers for Disease Control and Prevention for current dengue risk information and prevention guidance. The relevant assessment is destination-specific, rather than a single risk label applied to an entire region.

After returning: Travelers coming back from areas with dengue risk should take precautions to prevent mosquito bites for three weeks, according to the department. Its recommendation is directed at returning travelers generally, not just people with a confirmed dengue diagnosis.

If symptoms appear: Anyone who develops dengue symptoms within two weeks of returning from an area with dengue risk should seek medical evaluation, the department said. Symptoms can include fever, nausea, vomiting, rash and body aches. They can range from mild to severe and typically last two to seven days. Most people recover within a week, but severe illness can occur.

The department advises people who have recently traveled and are experiencing those symptoms to contact their health care provider. Health care providers and individuals who suspect dengue infection are also advised to call Hawaiʻi’s Disease Reporting Line at 808-586-4586.

Mosquito precautions that match the guidance

The health department relayed CDC recommendations for travelers visiting dengue-risk areas: Use an Environmental Protection Agency-registered insect repellent, wear long-sleeved shirts and long pants outdoors, and sleep in air-conditioned rooms, rooms with window screens or under insecticide-treated bed nets.

Those accommodation details are useful when evaluating a stay in a dengue-risk destination. Air conditioning, window screens and treated bed nets are specifically identified in the guidance as protective options. The department’s advice centers on preventing mosquito bites, both during travel and during the recommended period after returning.

At homes and workplaces, the department recommends emptying containers and other items that collect water. Mosquitoes need only small amounts of standing water to breed. Common sites include buckets, planters, rain barrels, small containers, cups left outside and water-catching plants such as bromeliads. This recommendation also applies in areas without reported dengue cases, according to the department.

Pacific travel is the case pattern, not the full risk map

Although all 10 Hawaiʻi cases this year involved Pacific Island travel, the department’s dengue guidance extends well beyond that region. It identifies year-round risk in tropical and subtropical areas of Central and South America, Asia, the Middle East and Africa, along with several Pacific islands and popular Caribbean destinations, including Puerto Rico.

The department also reported higher-than-usual dengue case numbers in countries including Costa Rica, Cuba, Malaysia, the Marshall Islands, Panama, Vanuatu and Vietnam. These destinations are part of its broader risk guidance; the announcement does not identify them as the exposure locations for Hawaiʻi’s individual cases.

For a Maui travel decision, keep the evidence in proportion: Officials expect low transmission risk from this case, and dengue is not established in Hawaiʻi. For anyone returning from a dengue-risk destination, the department’s instructions are more immediate: Prevent mosquito bites for three weeks and seek medical evaluation if symptoms develop within two weeks of returning.