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. 1974 Nov;27(11):902–905. doi: 10.1136/jcp.27.11.902

The rapid recognition of Lancefield group B haemolytic streptococci

R J Fallon 1
PMCID: PMC475523  PMID: 4613735

Abstract

When grown overnight on Columbia agar in an atmosphere of hydrogen and carbon dioxide, haemolytic strains of Lancefield group B streptococci (Streptococcus agalactiae) produce orange or brown pigmented colonies. This production of pigmented colonies can be used for the rapid presumptive identification of these organisms as belonging to group B without the need for grouping by serological methods.

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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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