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. 1977 Jul;6(1):42-5.
doi: 10.1128/jcm.6.1.42-45.1977.

CAMP-disk test for presumptive identification of group B streptococci

H W Wilkinson

CAMP-disk test for presumptive identification of group B streptococci

H W Wilkinson. J Clin Microbiol. 1977 Jul.

Abstract

The modification of the CAMP test for goup B streptococci involved substituting a paper disk impregnated with partially purified beta-hemolysin for the staphylococcal culture that was the source of beta-hemolysin in the original test. The disk is placed onto a sheep blood agar plate beside the streak of Streptococcus being tested. The plate is then incubated aerobically at 35 degrees C. A positive reaction consists of a lunar-shaped clear zone that appears within 24 h in the dark beta-hemolysin zone surrounding the disk. A double-blind study of 135 randomly coded streptococcal isolates showed complete agreement between the CAMP-disk test and the standard Lancefield precipitin test. All group B streptococci tested had positive reactions, and all strains tested from streptococcal groups A, C, D, and G were negative. The CAMP-disk test is a simple and convenient way to identify presumptively group B streptococci.

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References

    1. J Bacteriol. 1964 Nov;88:1304-9 - PubMed
    1. J Clin Pathol. 1953 Aug;6(3):224-6 - PubMed
    1. Appl Microbiol. 1974 Aug;28(2):199-204 - PubMed
    1. J Bacteriol. 1969 Nov;100(2):751-9 - PubMed
    1. Am J Dis Child. 1972 Jun;123(6):547-53 - PubMed

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