Vibrio are bacteria that occur naturally in brackish water such as the Chesapeake Bay and its tributaries, and in salt water, especially during warm weather months. Vibrio infections are relatively rare in Maryland and nationwide. However, when Vibrio or other bacteria come into contact with an open wound they can cause serious infections. Vibrio infections can be particularly dangerous for people with liver disease or weakened immune systems.
If you develop a wound with unusual redness, swelling or drainage, SEEK MEDICAL ATTENTION IMMEDIATELY and let your health care provider know whether you came in contact with brackish or salt water.
Are Vibrio levels monitored in Maryland to provide guidance for swimming and other water contact?
No. There is no known numerical threshold or standard that can be linked to risk of infection from Vibrio bacteria.
Learn more about Vibrio bacteria and Vibrio illness
Centers for Disease Control and Prevention
Please direct questions or comments concerning this page to MDE’s Health Advisor at (410) 537-3899.
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