A landmark study published in The Lancet Regional Health – Americas reveals that three-quarters of California’s population currently resides in areas vulnerable to seasonal dengue transmission. Researchers at the University of California employed semi-mechanistic modeling to assess temperature, precipitation, and mosquito biology, identifying the Central Valley and coastal metropolitan areas as highest-risk zones. The analysis demonstrates that climate change poses an escalating threat to public health in the state. Under moderate climate scenarios, transmission-suitable areas could expand by 60% by mid-century, with northern California counties previously considered too cold now facing increased risk. The establishment of Aedes aegypti mosquitoes across multiple counties has created a critical transmission pathway. Public health officials emphasize the urgent need for enhanced surveillance systems and vector control strategies to mitigate the expanding dengue threat. Read the full article on GMJ Newsroom.
Was this article helpful?
