Biomaterial Database

[Isolation of Aeromonas species from patients with sporadic diarrhea and characterization of Aeromonas hydrophila isolates]. 2000

T Okitsu, and R Suzuki, and S Sata, and T Shimada, and S Yamai

Department of Bacteriology and Pathology, Kanagawa Prefectural Public Health Laboratory.

A total of 16 strains of Aeromonas species were isolated from feces of 348 patients with sporadic diarrhea in western Kanagawa, Japan from 1996 to 1998. Of the 16 isolates, 7 were Aeromonas hydrophila, 1 was A. sobria and 8 were A. caviae. The strains of A. hydrophila were examined for hemolytic activities, hemolysin gene types and O-serogroups. Although all 7 strains of A. hydrophila showed hemolytic activities on sheep blood agar, in the test for hemolytic activities in culture supernatant, only 1 of the these strains showed no hemolytic activity against sheep erythrocytes. From the results of PCR assay, the tested strains of A. hydrophila were grouped into 2 hemolysin gene types of [ahh1 + ahh3 + aerA] (n = 6) and [ahh1 + aerA] (n = 1) both of which are recognized to be enteropathogenic. Five of the 7 strains of A. hydrophila belonged to serogroup O11. These results suggest that 7 strains of A. hydrophila isolates are recognized to be enteropathogenic strains and serogroup O11 is the major O-serogroup of enteropathogenic A. hydrophila in humans.

UI	MeSH Term	Description	Entries
D003967	Diarrhea	An increased liquidity or decreased consistency of FECES, such as running stool. Fecal consistency is related to the ratio of water-holding capacity of insoluble solids to total water, rather than the amount of water present. Diarrhea is not hyperdefecation or increased fecal weight.	Diarrheas
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000333	Aeromonas	A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that occurs singly, in pairs, or in short chains. Its organisms are found in fresh water and sewage and are pathogenic to humans, frogs, and fish.
D012703	Serotyping	Process of determining and distinguishing species of bacteria or viruses based on antigens they share.	Serotypings
D016980	Aeromonas hydrophila	A species of gram-negative, facultatively anaerobic, rod-shaped bacteria that may be pathogenic for frogs, fish, and mammals, including man. In humans, cellulitis and diarrhea can result from infection with this organism.