Phenotypic and molecular characterization of hyperpigmented group B Streptococci.

  title={Phenotypic and molecular characterization of hyperpigmented group B Streptococci.},
  author={Agnese Lupo and Corinne Ruppen and Andrew Hemphill and Barbara Spellerberg and Parham Sendi},
  journal={International journal of medical microbiology : IJMM},
  volume={304 5-6},
Group B Streptococcus (GBS) causes invasive infections in neonates, older adults and patients with comorbidities. β-hemolysin/cytolysin is an important GBS virulence factor. It is encoded by the cyl operon and confers GBS hemolytic activity. Isolates displaying hyperpigmentation are typically hyperhemolytic. Comparison of clonally identical isolates displaying different levels of pigmentation has shown transcriptional dysregulation due to mutations in components of the control of the virulence… CONTINUE READING

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