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Vibrio Vulnificus Infections Kill Four in Florida, Prompt Health Warning

Rising coastal water temperatures from climate change have fueled Vibrio growth, prompting Florida officials to update prevention guidance.

Vibrio Vulnificus bacteria.
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Overview

  • Florida health officials have confirmed 11 Vibrio vulnificus infections and four deaths so far this year in Bay, Broward, Hillsborough and St. Johns counties.
  • Infections have a roughly 20% overall fatality rate and about 50% if the bacteria enters the bloodstream, often causing necrotizing fasciitis.
  • The Florida Department of Health has issued guidance urging people to keep wounds covered, avoid raw shellfish and wear protective clothing when in coastal waters.
  • Last year’s record of 82 cases and 19 deaths was linked to hurricane-driven flooding that pushed warm saltwater into freshwater sources.
  • Climate change–driven warming of coastal waters and stronger storms are expected to further increase Vibrio risks and drive annual healthcare costs up to $6.1 billion by 2090.