Vibrio

Definition

Vibrio is a genus of Gram-negative bacteria, several species of which can cause foodborne infections. These bacteria are typically found in marine environments and are associated with gastroenteritis in humans.

5 Must Know Facts For Your Next Test

1. Vibrio cholerae is the species responsible for causing cholera, characterized by severe diarrhea and dehydration.
2. Vibrio parahaemolyticus is commonly linked to the consumption of raw or undercooked seafood, particularly shellfish.
3. These bacteria are halophilic, meaning they thrive in salty environments like seawater.
4. Infections caused by Vibrio can lead to symptoms such as abdominal cramping, nausea, vomiting, fever, and chills.
5. Proper cooking and handling of seafood can significantly reduce the risk of Vibrio infections.

Review Questions

• What environmental conditions favor the growth of Vibrio bacteria?
• Name two species of Vibrio that are known to cause gastrointestinal infections in humans.
• What preventive measures can be taken to avoid Vibrio infections from seafood?

Related terms

Proteobacteria:

A major phylum of Gram-negative bacteria that includes a wide variety of pathogens.

Gastroenteritis:

Inflammation of the stomach and intestines typically resulting from bacterial toxins or viral infection.

Halophilic Bacteria: Microorganisms that require saline conditions for growth.