Overview

• Dozens of European coastal and brackish swimming sites have been flagged as high risk for Vibrio proliferation, leading German authorities to issue swim advisories after confirming three domestic infections by mid-July.
• Florida health officials report four beachgoer deaths from Vibrio vulnificus infections so far in 2025, prompting renewed scrutiny of warmed waters and hurricane-driven saltwater intrusion that fueled 82 infections and 19 deaths in 2024.
• The Robert Koch-Institut warns that surface water temperatures above 20 °C can trigger rapid Vibrio growth in coastal and inland waters, with mandatory reporting for non-cholera Vibrio infections in place since 2020.
• The European Centre for Disease Prevention and Control’s Vibrio Map Viewer offers real-time risk estimates based on sea surface temperature and salinity, guiding targeted sampling and public alerts.
• Health experts urge individuals with open wounds or weakened immune systems to avoid affected waters and call on policymakers to establish official Vibrio thresholds in water-quality regulations.