Incidence of toxic Aeromonas isolated from food and human infection

• Published in: FEMS immunology and medical microbiology Vol. 32; no. 3; pp. 237 - 242
• Main Authors: Martins, Luciano Moura, Marquez, Rosabel Falcón, Yano, Tomomasa
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Publishing Ltd 01.02.2002; Blackwell; Oxford University Press
• Subjects: Aeromonas; Aeromonas - isolation & purification; Aeromonas - pathogenicity; Animals; Biological and medical sciences; Brazil - epidemiology; Cell culture; Cell lines; Cercopithecus aethiops; CHO Cells; Clinical isolates; Cricetinae; Cytotoxins; Enterotoxins; Food; Food and human infection; Food Microbiology; Fundamental and applied biological sciences. Psychology; Gram-Negative Bacterial Infections - epidemiology; Gram-Negative Bacterial Infections - microbiology; Hemolysis; Humans; Incidence; Menopause; Microbiology; Toxicity; Toxins; Vacuolation; Vero Cells; Brazil; Food and human infection; Vacuolation; Human; Toxicity; Aeromonas; Bacteria; Vibrionaceae; Isolate; Food
• ISSN: 0928-8244; 1574-695X; 2049-632X
• DOI: 10.1111/j.1574-695X.2002.tb00559.x

Abstract One hundred and ninety four Aeromonas isolates (99 from food and 95 from clinical sources) were analyzed as to the species involved and the toxins produced. Of the clinical isolates of Aeromonas, 29.4% were enterotoxigenic, 43.1% were hemolytic and 89% were cytotoxigenic. Among the food isolates, 18.2% were enterotoxigenic, 17.1% were hemolytic and 72.7% were cytotoxigenic. Aeromonas sobria and Aeromonas veronii produced more enterotoxin and cytotoxin than the other isolates, whereas A. veronii and Aeromonas salmonicida produced cell-free hemolysin. Most of the isolates produced cytotoxins (81%) active on Vero (green monkey kidney) and Chinese hamster ovary cells, but only the culture supernatant of A. sobria produced vacuolation in these cell lines.