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Information on this website focuses on Vibrio species causing vibriosis. To learn about the illness caused by certain strains of V.cholerae, visit CDC’s cholera website.

	Vibrio

Roughly a dozen Vibrio species are known to cause vibriosis in humans, with the most common in the United States being V. parahaemolyticus, V. vulnificus, and V. alginolyticus. The Vibrio species that cause vibriosis naturally live in brackish or salt water. People with vibriosis become infected by consuming raw or undercooked seafood or exposing a wound to seawater. Most infections occur from May through October when water temperatures are warmer.

Vibriosis and Raw Oysters

	Grilled oysters

Eating raw oysters can increase the chance you will get sick with vibriosis. That’s because Vibrio bacteria thrive in coastal waters where oysters are harvested.

Vibrio and Wounds

	Fisherman in ocean

Getting seawater or seafood drippings on an open wound can cause vibriosis.

 

Vibrio and Bloodstream Infections

	Older gentlemen on beach with binoculars

Some Vibrios can get into the bloodstream. Many bloodstream infections are fatal, and death can occur within days.
 

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