<prompt> TCBS agar is for?LeptospiraVibrioLegionelaBacteroides  <response>: Ans. b Vibrio The Vibrio organism appears as gram-negative, curved, motile bacilli. The A subunit of the Vibrio enterotoxin activates adenyl cyclase, resulting in the hypersecretion of water, sodium, potassium, chloride, and bicarbonate into the intestine diahrrea. Vibrio gastroenteritis or cholera are associated with consumption of contaminated seafood or water. Vibrio vulnificus is associated with cellulitis caused by trauma incurred in a seawater environment and carries a high mortality rate if not treated rapidly. Vibrio species require salt for growth and can be differentiated from other organisms by growth on TCBS agar. 