Sargassum and plastic debris create deadly pathogen storm.

A new study led by Florida Atlantic University has found that Vibrio bacteria, which are the main cause of death in humans from marine environments, can interact with Sargassum spp. and plastic marine debris to create a “perfect pathogen storm” that threatens both marine life and public health. Vibrio pathogens have a unique ability to adapt and “stick” to both Sargassum and microplastics, thus considerably expanding their range. The study highlights the need for caution regarding the harvest and processing of Sargassum biomass until the risks are explored more thoroughly.