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. 1994 Nov;32(11):2843–2845. doi: 10.1128/jcm.32.11.2843-2845.1994

Detection of Escherichia coli K95 strains by bacteriophages.

W Nimmich 1
PMCID: PMC264171  PMID: 7852583

Abstract

A set of three bacteriophages (phi K5, phi K20, and phi K95) was used to discriminate between Escherichia coli K5 and K95 strains isolated from patients with urinary tract infections. All the strains tested were detected primarily by phi K5 and thought to carry the capsular antigen K5. Ten O2, 33 O6, and 32 O18 strains proved to be sensitive to the three phages. Eleven of 44 O75:H- strains, all 8 O75:H5 strains, 1 O17 strain, and 1 OR strain were not lysed by phage phi K20, the only phage without activity toward the K95 test strain. It has been suggested that the phi K20-resistant strains carry K95. These findings were confirmed by countercurrent immunoelectrophoresis with K-antigen extracts and anti-K95 serum. These preliminary data indicate the usefulness of these phages to detect K95 strains among K5 isolates.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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