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. 1977 Aug;6(2):183-4.
doi: 10.1128/jcm.6.2.183-184.1977.

Nontypable group B streptococci isolated from human sources

H W Wilkinson

Nontypable group B streptococci isolated from human sources

H W Wilkinson. J Clin Microbiol. 1977 Aug.

Abstract

The present study was done to determine whether so-called nontypable (NT) group B streptococci from human sources possess as yet unrecognized type antigens. Antisera were raised in rabbits against several NT strains and then tested with hydrochloric acid extracts of 53 NT group B streptococci. One serum was strain specific, another was nonspecific in that it contained only R-protein antibodies, and a third (NT1), although apparently type specific, reacted with only five strains. These results do not justify using NT1 serum in the group B typing system.

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