Streptococcus agalactiae

Streptococcus agalactiae Overview

Also known as Group B Streptococcus (GBS), Streptococcus agalactiae is associated with urinary tract infections and wound infections.

Urinary tract infections: Streptococcus agalactiae is increasingly recognized as a cause of UTIs in pregnant women, the elderly, and patients with diabetes. In pregnant individuals, its presence in the urinary tract is a marker for heavy genital tract colonization and increases the risk of neonatal infection. Its detection is essential for both patient management and public health implications (Flores et al. 2015, Mohanty et al. 2021).

Wound infections: Streptococcus agalactiae, is known for neonatal infections but is also implicated in adult skin and soft tissue infections. It is frequently isolated from diabetic foot ulcers and chronic wounds. GBS infections can progress rapidly and require timely antibiotic therapy, often penicillin-based (Raabe & Shane 2019, Akbari et al. 2023).

References:

Flores-Mireles AL, Walker JN, Caparon M, Hultgren SJ. Urinary tract infections: epidemiology, mechanisms of infection and treatment options. Nat Rev Microbiol. 2015 May;13(5):269-284.

Mohanty, S., Purohit, G., Rath, S., Seth, R. K., & Mohanty, R. R. (2021). Urinary tract infection due to Group B Streptococcus: A case series from Eastern IndiaClinical case reports9(10), e04885. https://doi.org/10.1002/ccr3.4885

Raabe, V. N., & Shane, A. L. (2019). Group B Streptococcus (Streptococcus agalactiae)Microbiology spectrum7(2), 10.1128/microbiolspec.gpp3-0007-2018.

Akbari, M. S., Keogh, R. A., Radin, J. N., Sanchez-Rosario, Y., Johnson, M. D. L., Horswill, A. R., Kehl-Fie, T. E., Burcham, L. R., & Doran, K. S. (2023). The impact of nutritional immunity on Group B streptococcal pathogenesis during wound infectionmBio14(4), e0030423.

Leclercq, S. Y., Sullivan, M. J., Ipe, D. S., Smith, J. P., Cripps, A. W., & Ulett, G. C. (2016). Pathogenesis of Streptococcus urinary tract infection depends on bacterial strain and β-hemolysin/cytolysin that mediates cytotoxicity, cytokine synthesis, inflammation and virulenceScientific reports6, 29000.

Verani JR, McGee L, Schrag SJ; Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention (CDC). Prevention of perinatal group B streptococcal disease–revised guidelines from CDC, 2010. MMWR Recomm Rep. 2010 Nov 19;59(RR-10):1-36. PMID: 21088663.

Products used to detect Streptococcus agalactiae

The UTI large PCR panel is designed for multiplex in vitro assessment of 24 common urinary tract microbiota, using real-time PCR.
The women’s health large PCR panel is designed for multiplex in vitro assessment of 37 common vaginal microbiota and resistance markers, using real-time PCR.
The wound large PCR panel is designed for multiplex in-vitro assessment of 30 microbiota associated with wounds or tissue damage, using real-time PCR.