Maine CDC Health Advisory

September 7, 2023

Recommendations for Diagnosing and Testing for Vibriosis

Vibriosis is caused by Vibrio bacteria that naturally live in certain coastal waters. Most infections occur after eating raw or undercooked shellfish. Some types of Vibrio cause skin infections when an open wound is exposed to salt water or brackish water. Individuals with immunocompromising conditions or chronic liver disease are most likely to be infected with Vibrio. Eating raw seafood and coming into contact with salt water or brackish water can increase the likelihood of acquiring the disease.

Symptoms of vibriosis acquired through ingestion may include abdominal pain, nausea, vomiting, diarrhea, and fever. Symptoms typically begin within 24 hours of ingestion. Most mild cases recover within three days. However, severe cases may require hospitalization. Symptoms of vibriosis acquired through wounds may include fever, redness, pain, swelling, warmth, discoloration, and discharge.

As of September 5, 2023, there have been 12 reported probable and confirmed cases of vibriosis in Maine residents this year. The majority of vibriosis cases are reported in the summer and fall months when the coastal waters are warmer.

Advisory (PDF)