CDC reports on 2025-2026 dengue outbreak response in American Samoa
The Centers for Disease Control and Prevention published a report on November 12, 2026, documenting a dengue outbreak in American Samoa spanning 2025 and 2026. Published in the Morbidity and Mortality Weekly Report by lead author E. Trautner and colleagues, the report outlines field notes from the response effort. The publication details vector control tools used against mosquitoes, including transfluthrin products designed with a stated use duration of one year. Dengue is a viral illness spread by mosquitoes, making vector control measures central to controlling community spread during outbreaks. For residents and visitors in affected territories, these reports explain official response activities and the specific tools public health teams deploy to manage mosquito populations. By detailing field observations across pages 652 to 654 of volume 75, the report provides official records of local outbreak responses in U.S. jurisdictions.
What was announced
The U.S. Centers for Disease Control and Prevention (CDC) released a report titled "Notes from the Field: Dengue Outbreak - American Samoa, 2025-2026" on November 12, 2026. Written by E. Trautner, A. Konrote, R. Nuake, and co-authors, the study appeared in volume 75 of the Morbidity and Mortality Weekly Report on pages 652 to 654.
The document records field observations from the response to a dengue outbreak in American Samoa. Among the response measures mentioned, the report notes the use of transfluthrin, a chemical tool applied for mosquito control with a stated use duration of one year.
What it means
The publication provides an official public health accounting of how local authorities and federal teams responded to dengue in American Samoa during 2025 and 2026. Dengue viruses spread to people through the bites of infected mosquitoes. Tracking these events helps public health officials monitor vector control strategies across different territories.
The reference to transfluthrin shows that response workers evaluated or applied long-acting mosquito control products during the effort. By recording specific products with a one-year stated duration, the CDC establishes public records on vector management choices during island outbreaks.
What the announcement does not tell us
The provided report text does not state how many total dengue cases or hospitalizations occurred in American Samoa during the 2025-2026 period. It does not list patient outcomes, specific age groups affected, or exact dates when the outbreak began and ended.
Furthermore, the brief text does not explain how effective transfluthrin was in reducing mosquito populations or stopping transmission. The document does not describe the full costs of the control programs or what specific steps residents should take next.
How this was written
This analysis was written with AI from the official announcement below, using only facts that announcement states. The quoted wording is CDC Morbidity and Mortality Weekly Report’s own. Always check the original before acting on anything here.
This report describes a dengue outbreak in America Samoa that resulted in 1,048 confirmed cases and 371 hospitalizations during June 2025-August 2026.
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