Bacitracin and coagglutination for grouping of beta-hemolytic streptococci.

Journal of clinical microbiology ·Vol. 7 ·No. 5 ·1978-05-00 ·Pages 463-6

Stoner RA

Abstract

Bacitracin may be used for presumptive differentiation of group A from other beta-hemolytic streptococci. Whatever criteria are used for the test, a small number of erroneous results will be obtained. With the 1,161 strains studied in this laboratory, using a zone of 10 mm or greater as indicative of group A was better than using Maxted's original criterion of any zone of inhibition for group A. Co-agglutination is a preferable alternative to bacitracin testing, providing a grouping result as quickly as the bacitracin test but with the advantage of giving a definite grouping result. With the 247 strains studied so far, coagglutination results have correlated exactly with results of conventional grouping by a precipitin method.

MeSH Terms

Bacitracin/pharmacology Bacteriological Techniques Hemolysis Streptococcus agalactiae/classification,drug effects,immunology Streptococcus pyogenes/classification,drug effects,immunology

Chemicals

Bacitracin

Authors & Affiliations

1 authors, click to expand affiliations / ORCID

Stoner R A

References (13)

13 references, click to expand

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Article Info

Journal

Journal of clinical microbiology

Abbr.

J Clin Microbiol

ISSN

0095-1137

DOI

10.1128/jcm.7.5.463-466.1978

Published

1978-05-00

Pages

463-6

Language

English

Region

United States

NLM ID

7505564

PMCID

PMC275020

Subset

External Links

PubMed source DOI: 10.1128/jcm.7.5.463-466.1978 PMC Full Text View journal details

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Bacitracin and coagglutination for grouping of beta-hemolytic streptococci.

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