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''Aeromonas'' is a Gram-negative, facultative anaerobic, rod-shaped bacterium that morphologically resembles members of the family Enterobacteriaceae. Most of the 14 described species have been associated with human diseases. The most important pathogens are ''A. hydrophila'', ''A. caviae'', and ''A. veronii'' biovar ''sobria''. The organisms are ubiquitous in fresh and brackish water. They group with the gamma subclass of the Proteobacteria. Two major diseases associated with ''Aeromonas'' are gastroenteritis and wound infections, with or without bacteremia. Gastroenteritis typically occurs after the ingestion of contaminated water or food, whereas wound infections result from exposure to contaminated water. Although some potential virulence factors (e.g. endotoxins, hemolysins, enterotoxins, adherence factors) have been identified, their precise roles are unknown. ''Aeromonas'' species cause: # opportunistic systemic disease in immunocompromised patients # diarrheal disease in otherwise healthy individuals # wound infections ==Caution about differential diagnosis== If automated machines are not using the most updated database, ''Elizabethkingia meningoseptica'' may be mistaken for ''Aeromonas salmonicida''. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Aeromonas」の詳細全文を読む スポンサード リンク
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