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Klebsiella oxytoca: an opportunistic bacterial pathogen that poses challenges for treatment and vaccine development

Gabriela Guerrera Soares1, Maria Carolina Francalassi Sarcinelli1, Marcelo Silva Folhas Damas1,2

  • 1Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, Brazil.

Future Microbiology
|February 13, 2026
PubMed

Insights

Klebsiella oxytoca is a major cause of illness and death. This review explores antibiotic resistance, vaccine development challenges, and new tools like AI for creating effective Klebsiella oxytoca vaccines.

Area of Science:

  • Microbiology
  • Immunology
  • Vaccinology

Background:

  • Klebsiella oxytoca is a significant opportunistic pathogen contributing to global morbidity and mortality.
  • Limited understanding of its genomic diversity, virulence factors, and immune evasion mechanisms hinders effective control.
  • Antibiotic resistance in K. oxytoca presents a major therapeutic challenge.

Purpose of the Study:

  • To review current knowledge on antibiotic resistance in K. oxytoca.
  • To discuss the potential of bacterial vaccines in mitigating antimicrobial resistance and infection rates.
  • To examine challenges in traditional vaccine development and explore novel approaches.

Main Methods:

  • Literature review of K. oxytoca research.
  • Analysis of antibiotic resistance patterns.
  • Evaluation of traditional and emerging vaccine development strategies.
  • Exploration of subtractive proteomics, reverse vaccinology, AI, and machine learning.

Main Results:

  • K. oxytoca exhibits significant antibiotic resistance, complicating treatment.
  • Traditional vaccine development faces hurdles like animal testing, high costs, and long timelines.
  • Emerging technologies show promise for accelerating vaccine candidate identification.

Conclusions:

  • Further research is essential to overcome K. oxytoca's challenges.
  • Innovative therapeutic and preventive strategies, particularly effective vaccines, are urgently needed.
  • Novel approaches like AI and machine learning could revolutionize vaccine development for K. oxytoca.
Keywords:
Klebsiella oxytocaantimicrobial resistanceartificial intelligencereverse vaccinologysubtractive proteomicsvaccines

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