Vibrio is a genus of Gram-negative, facultative anaerobic comma-shaped bacteria. Many species of Vibrio are halophilic (salt-loving) and therefore can be found in seawater and seafood. Large numbers of Vibrio are found in the summer months as the temperature of water rises, causing them to multiply. This genus contains several pathogenic species, including Vibrio cholerae, Vibrio parahaemolyticus and Vibrio vulnificus. Learn more about Vibrio here: http://acceleratingscience.com/food/fact-sheet-on-vibrio/