SEROGROUPING OF THE AEROMONAS HYDROPHILA GROUP

Antisera for the 45 serogroups of the Sakazaki and Shimada O antigen serogrouping scheme were prepared in the Division of Enteric Pathogens, Central Public Health Laboratory, London. They were used to examine 864 strains of mesophilic, motile Aeromonas spp isolated in the United Kingdom: 775 were fr...

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Bibliographic Details
Published in:Journal of diarrhoeal diseases research 1988-06, Vol.6 (2), p.95-98
Main Authors: CHEASTY, TOM, GROSS, ROGER J, THOMAS, LINDA V, ROWE, BERNARD
Format: Article
Language:English
Subjects:
Aeromonas
Aeromonas - classification
Aeromonas hydrophila
Antigens, Bacterial - isolation & purification
Diarrhea
Diarrhea - microbiology
Enterotoxins
Epidemiology
Feces - microbiology
Humans
O Antigens
Pathogens
Public health
Serotyping
Species differences
United Kingdom
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Summary:Antisera for the 45 serogroups of the Sakazaki and Shimada O antigen serogrouping scheme were prepared in the Division of Enteric Pathogens, Central Public Health Laboratory, London. They were used to examine 864 strains of mesophilic, motile Aeromonas spp isolated in the United Kingdom: 775 were from human faeces, 36 from other clinical specimens and 53 from non-human sources. Two hundred thirty-five strains (27%) were Aeromonas hydrophila, 220 (25%) were A. sobria, 399 (46%) were A. caviae, and 10 (1%) conformed to "Phenon 5" of Bryant et al. A typability rate of only 40% was achieved. Ten new O serogroups were identified among the U.K. isolates, and the addition of antisera for these to the existing scheme improved the typability rate to 55%. The typability rate varied between species reaching 64% for A. hydrophila strains, 58% for A. sobria and 48% for A. caviae. There is a need to further expand the scheme to increase the typability rate and to evaluate its use in other countries before serotyping can be of value in epidemiological studies.
ISSN:0253-8768
2311-8512