Abstract
The presence and restriction fragment length polymorphism (RFLP) of DNA fragments hybridizing with virulence and “house keeping” gene probes were analyzed for 87 group B streptococcal (GBS) strains of human and bovine origin. Most characteristics obtained for bovine strains were similar when compared with those for human strains. The most significant degree of RFLP was discovered for the sizes ofHindIII fragments containingbca gene. Human GBS strains withbac gene, encoding β antigen with IgA binding capacity, were characterized by almost identical complex hybridization patterns with multiple gene probes. At the same timebac gene was not found among bovine GBS strains. GenescpB that encodes C5a peptidase in all human GBS strains was detected only in 9 of 39 strains of bovine origin. These two characteristics effectively distinguished bovine GBS strains from GBS strains of human origin.
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Dmitriev, A., Tkáčiková, L., Suvorov, A. et al. Comparative genetic study of group B streptococcal strains of human and bovine origin. Folia Microbiol 44, 449–453 (1999). https://doi.org/10.1007/BF02903721
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DOI: https://doi.org/10.1007/BF02903721