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The distribution of Bacteroides fragilis serotypes amongst clinical strains

Published online by Cambridge University Press:  15 May 2009

K. M. Elhag  and
Soad Tabaqchali
K. M. Elhag
Affiliation:
Department of Medical Microbiology, St Bartholomew's Hospital, West Smithfield, LondonECL4 7BE
Soad Tabaqchali
Affiliation:
Department of Medical Microbiology, St Bartholomew's Hospital, West Smithfield, LondonECL4 7BE
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Summary

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Three hundred and twenty-two strains of Bacteroides fragilis isolated from infected patients at three different hospitals were tested against 20 type specific B. fragilis antisera using the tube agglutination technique. Of these strains 41·3% were assigned to a single O-serotype, a further 20·5% were agglutinated by several antisera and could not be classified and the remainder showed no reactions. Three different serotypes were prevalent in the three hospitals and minor geographical variation was observed.

No correlation was found between serotypes and the origin of infection, but those from the blood were the most readily typable strains. No correlation was found between serotypes and biotypes of B. fragilis.

Type
Research Article
Information
Journal of Hygiene , Volume 81 , Issue 1 , August 1978 , pp. 89 - 97
Copyright
Copyright © Cambridge University Press 1978

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