The Cook Islands is facing a public health challenge with the recent announcement of its first dengue-related death amid a significant rise in cases. An elderly patient with pre-existing health issues succumbed to the illness on February 2nd, following late hospital admission. This tragic event has prompted health officials to launch Operation Namu-26, aimed at raising awareness and fostering prevention of the mosquito-borne virus.
Dengue fever is a viral infection transmitted through mosquito bites, and as part of Operation Namu-26, authorities will intensify insecticide spraying in affected areas while initiating a nationwide cleanup to eliminate stagnant water and potential mosquito breeding grounds. Since the outbreak was declared in May 2025, over 500 dengue cases have been reported in the Cook Islands, highlighting the urgency of the situation.
Furthermore, there has been a notable incursion of dengue cases in New Zealand, with 86 reported cases linked predominantly to travel from the Cook Islands. Health officials in New Zealand have also marked 40 suspected cases in visitors returning from the islands. A spike in dengue infections was noted in Rarotonga at the end of December 2025, continuing into January 2026, with cases also documented on several other islands.
In an effort to assist tourists, local companies will provide dengue prevention supplies and adhere to health ministry guidelines for property spraying. Tourists are encouraged to remain vigilant and seek immediate medical attention if they experience symptoms such as flu-like feelings, headaches, joint or muscle pain, or rashes.
Medical professionals emphasize the importance of awareness around dengue fever, noting that one in four infected individuals may experience severe symptoms. Particularly vulnerable populations, including young children and the elderly, should take extra precautions. Dr. Maryann Heather, a clinician based in New Zealand, urges travelers to stay informed about the risks associated with visiting the Cook Islands, reinforcing the necessity for timely medical evaluation if dengue symptoms arise.
Authorities remain optimistic that with proactive measures and public education, the spread of dengue can be effectively managed and contained, ensuring the safety and health of residents and visitors alike.