Which Vibrio species is closely associated with rapidly progressing wound infections in patients with underlying liver disease?

• A. Vibrio alginolyticus
• B. Vibrio cholerae
• C. Vibrio vulnificus
• D. Vibrio parahaemolyticus

Answer: (C)

Vibrio vulnificus is the Vibrio species most closely linked to rapidly progressing wound infections in patients with underlying liver disease. It thrives in seawater and can invade through a wound or exposed skin after contact with contaminated water or seafood. In someone with liver disease, high iron levels and impaired immunity make it easier for this organism to proliferate and spread systemically, leading to swift tissue destruction and septicemia. That combination—seawater-associated wound infection plus liver disease and iron-rich conditions—explains why this organism is the best match. Other Vibrio species more often cause gastroenteritis from seafood or cause wound infections that aren’t as rapidly progressive or closely tied to liver disease.