As summer approaches, the European Centre for Disease Prevention and Control (ECDC) issued a warning about Vibrio bacteria found in some coastal areas, particularly around the Baltic Sea and the North Sea.
Vibrio bacteria naturally occur in salty and brackish waters, where salt water and fresh water mix. Infections with this bacteria can occur when the bacteria enter the body through cuts or wounds and through consuming contaminated shellfish, such as oysters.
Certain species can pose serious health risks. Untreated infections can lead to serious complications including blood infections, sepsis or even limb amputation.
To reduce the risk of Vibrio infections, the ECDC advises people to avoid eating raw or undercooked shellfish, particularly oysters, and ensure that seafood is cooked thoroughly. Those who have open wounds, recent piercings, or cuts, are advised to avoid swimming in brackish waters or saltwater, or to cover the affected area with a waterproof bandage.
Vibrio bacteria are frequently found in the Baltic Sea during the summer months. In 2018, there were 445 reported cases of Vibrio infections, more than triple the number of prior years.
Rising sea temperatures due to climate change are expected to facilitate the spread of Vibrio to more coastal areas. The bacteria have also been found in the North Sea.

