Aeromonas is a gram-negative, facultative anaerobic rod that morphologically resembles members of the family Enterobacteriaceae. Die mesophilen, z. B. Aeromonas hydrophila sind meist polar begei?elt und beweglich (motil), die k?lteliebenden Arten (z. B. Aeromonas salmonicida besitzen in der Regel keine Gei?eln und sind somit nicht motil.
Fourteen species of Aeromonas have been described, most of which have been associated with human diseases. The most important pathogens are A. hydrophila, A. caviae, and A. veronii biovar sobria. Although some potential virulence factors (e.g. endotoxins, hemolysins, enterotoxins, adherence factors) have been identified, their precise role is unknown.
Aeromonas ist eine Gattung innerhalb der gramnegativen Gammaproteobakterien. Aeromonas wurde früher zu der Familie der Vibrionaceae gestellt. Alle Arten k?nnen auch ohne Sauerstoff leben, sie sind fakultativ anaerob. The organisms are ubiquitous in fresh and brackish water.
Aeromonas species are resistant to penicillins, most cephalosporins, and erythromycin. Ciprofloxacin is consistently active against their strains in the U.S. and Europe, but resistant cases have before been reported in Asia. If automated machines are not using the most updated database, Elizabethkingia meningoseptica may be mistaken as Aeromonas salmonicida. Leeches have been implicated in the transmission of Aeromonas infections to humans. It is necessary for patients with chronic diahreal disease or systemic infection.
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