Hawaii health department confirms measles in vaccinated Oʻahu visitor; exposures listed

The Hawaiʻi Department of Health State Laboratories Division confirmed a case of measles in a vaccinated adult visitor to Oʻahu, the agency said in a press release dated March 7, 2026. The press release, issued under the headers of Governor Josh Green, M.D., and DOH Director Kenneth S. Fink, M.D., said the visitor recently arrived from a region of the continental United States with known measles transmission, became ill after arrival, sought medical care and is now recovering at a private residence on Oʻahu.

The DOH named multiple exposure locations and said it is investigating the case to identify people who may have been exposed. KITV reported a specific airport time window: Daniel K. Inouye International Airport exposure occurred March 3 from 9 a.m. to 12:30 p.m. in Terminal 1 check-in, security and A gates. The DOH press release and local outlets also listed a Lāʻie temple, shown as Lāʻie Mormon Temple in the DOH release and as Laie Hawaii Temple in KITV, and three Hawaiʻi Island sites: Hilo International Airport, Hawaii Volcanoes National Park and Hilo Siam Thai Restaurant.

The DOH said it is working to identify those who might have been exposed and is working with them to prevent the spread of disease. KITV reported the department is contacting known close contacts and has issued notifications to airlines and airports connected to the visitor’s travel, and that a medical advisory to healthcare providers statewide will be issued. KITV also noted that DOH did not release additional identifying information about the visitor or whether they were traveling with anyone.

Public health officials emphasized vaccination and testing for immunity. The Star-Advertiser, quoting DOH guidance, said: “The best protection against measles is the MMR vaccine. All children should receive two doses of the MMR vaccine. The first dose is given at age 12-15 months and the second dose at 4-6 years of age.” The newspaper also quoted DOH: “If you are planning to travel, consult your healthcare provider to determine whether an additional or earlier dose of MMR is recommended.” The Star-Advertiser presented DOH guidance on protection status: “If you have received two doses of a measles-containing vaccine, or were born before 1957, you are protected and do not need to take any action. If you have received only one dose of a measles-containing vaccine, you are likely to be protected and your risk of being infected with measles from any of these exposures is low. However, to achieve complete immunity, contact your healthcare provider about getting a second vaccine dose.”

HawaiiNewsNow summarized clinical information and post-exposure steps: “Measles is a highly contagious virus that spreads through direct contact or through the air when an infected person coughs or sneezes. Symptoms typically appear seven to 14 days after exposure and may include fever, cough, runny nose, red eyes, and a rash that begins on the face and spreads across the body.” The outlet noted there is no specific medication to treat measles and advised symptomatic care, adding the department provided contact numbers for people who believe they were exposed and cannot reach their provider: the DOH Disease Reporting Line at 808-586-4586, and the Disease Investigation Branch at 808-586-8362.

A vaccinated traveler testing positive underscores two public health realities: measles can breach prior immunity when exposure is intense, and travel hubs and tourist sites can create rapid transmission chains across islands and communities. The DOH response will test the speed of contact tracing and the capacity of clinics to provide MMR doses or confirm immunity, particularly for residents and workers in frontline service and tourism sectors who may have barriers to care. The department referred the public to its measles information page, the CDC measles website and an MMR vaccine factsheet for further details and instructions.