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A Murine Model of Group B Streptococcus Vaginal Colonization
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Group A Streptococcus Infections: Their Mechanisms, Epidemiology, and Current Scope of Vaccines

Vinayak Iyer1, Vivek Sagar2, Devinder Toor3

  • 1Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, IND.

Cureus
|February 1, 2023
PubMed

Insights

Group A Streptococcus (GAS) causes significant global health issues, yet no vaccine exists. This review examines GAS virulence factors, epidemiology, vaccine candidates, and development challenges.

Area of Science:

  • Microbiology
  • Immunology
  • Vaccinology

Background:

  • Group A Streptococcus (GAS) is a major cause of bacterial infections globally.
  • GAS infections present a significant health burden, especially in low- and middle-income countries.
  • Current GAS vaccine development is hindered by bacterial genetic diversity and protein variability.

Purpose of the Study:

  • To review GAS virulence factors and epidemiology.
  • To explore current GAS vaccine candidates and their development challenges.
  • To provide an overview of the status of GAS vaccine development.

Main Methods:

  • Literature review of GAS virulence factors.
  • Analysis of epidemiological data for GAS infections.
  • Evaluation of M-protein and non-M-protein-based GAS vaccine strategies.
  • Assessment of challenges in GAS vaccine development.

Main Results:

  • GAS possesses multiple virulence factors, including M-protein and hyaluronic acid.
  • Vaccine candidates target different GAS components, such as M-protein regions.
  • Significant genetic heterogeneity and protein variation pose challenges to vaccine efficacy.

Conclusions:

  • Developing an effective GAS vaccine requires overcoming substantial scientific and technical hurdles.
  • Continued research into GAS virulence and vaccine platforms is crucial.
  • Addressing the global health burden of GAS necessitates a successful vaccine strategy.
Keywords:
emm genegroup a streptococcusrheumatic heart diseasestreptococcus pyogenesvaccine

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