Vibriosis, a potentially serious bacterial infection, is on the rise in European waters during the summer months. Vibrio bacteria, which flourish in warm, brackish environments like the Baltic Sea, can cause severe illness. Public health officials are urging swimmers to take precautions, including avoiding swimming with open wounds, showering after swimming, and seeking medical attention if symptoms develop. The risk is particularly high during peak bathing season when water temperatures are elevated. Staying informed and practicing good hygiene are key to minimizing the risk of infection.