The Hawai‘i Department of Health (DOH) has issued a call for vigilance as measles cases rise both domestically and internationally. The disease, once declared eliminated in the United States in 2000, is experiencing a resurgence due to declining vaccination rates.
In recent years, the mainland United States has seen an increase in measles outbreaks, with 59 cases reported in 2023 and 285 cases in 2024. As of March 13, 2025, the Centers for Disease Control and Prevention (CDC) have confirmed 301 cases across 15 states. Globally, the World Health Organization recorded over 10 million cases in 2023.
Hawai‘i faces an increased risk of a travel-related measles case due to its low vaccination rates. The state’s vaccination rate for kindergartners was at 90% during the last school year, below the national average of 93%. Some areas on Maui, Kauaʻi, and Hawaiʻi Island report even lower rates, underlining their vulnerability to potential outbreaks.
Measles is highly contagious; nine out of ten unvaccinated individuals exposed to it are likely to contract it. The virus can remain airborne for up to two hours after an infected person leaves an area. A community needs a vaccination rate of at least 95% to prevent outbreaks effectively.
Governor Josh Green emphasized the seriousness of measles: “As a doctor and governor, I want to be clear: measles is a serious, highly contagious disease, and cases are rising worldwide." He added that "the best protection is vaccination," noting that two doses of the MMR vaccine are highly effective.
The DOH issued a medical advisory on March 11 urging healthcare providers to identify and report suspected cases while ensuring patients' vaccinations are current. No locally acquired measles cases have been reported yet in Hawai‘i.
Residents are encouraged to ensure immunizations are up-to-date as high vaccination rates protect not only individuals but also communities at large. More information about measles and vaccinations can be found on the Hawai‘i Department of Health website.