Dengue and Measles Outbreaks Persist Across Oceania

Public health authorities in Oceania are managing ongoing outbreaks of dengue, diarrhea, and measles as of early November 2026. In the Marshall Islands, a red alert for dengue remains in effect with 165 confirmed or probable cases reported, primarily in Majuro and Ebeye. Samoa and American Samoa continue to report dengue cases, though weekly infection rates have stabilized or declined. Meanwhile, the Federated States of Micronesia, specifically Yap State, has extended a diarrhea alert for the tenth consecutive week, with laboratory testing identifying adenovirus and E. coli. In Australia, health officials in Western Australia are investigating a new measles case in a young child with no history of international travel, raising concerns about undetected local transmission. This brings the national total to 122 measles cases for the year. Authorities continue to monitor affected regions and maintain vector control measures where necessary.