Respiratory tract infections: an update on the complexity of bacterial diversity, therapeutic interventions and breakthroughs

Arch Microbiol. 2024 Aug 17;206(9):382. doi: 10.1007/s00203-024-04107-z.

Abstract

Respiratory tract infections (RTIs) have a significant impact on global health, especially among children and the elderly. The key bacterial pathogens Streptococcus pneumoniae, Haemophilus influenzae, Klebsiella pneumoniae, Staphylococcus aureus and non-fermenting Gram Negative bacteria such as Acinetobacter baumannii and Pseudomonas aeruginosa are most commonly associated with RTIs. These bacterial pathogens have evolved a diverse array of resistance mechanisms through horizontal gene transfer, often mediated by mobile genetic elements and environmental acquisition. Treatment failures are primarily due to antimicrobial resistance and inadequate bacterial engagement, which necessitates the development of alternative treatment strategies. To overcome this, our review mainly focuses on different virulence mechanisms and their resulting pathogenicity, highlighting different therapeutic interventions to combat resistance. To prevent the antimicrobial resistance crisis, we also focused on leveraging the application of artificial intelligence and machine learning to manage RTIs. Integrative approaches combining mechanistic insights are crucial for addressing the global challenge of antimicrobial resistance in respiratory infections.

Keywords: Antimicrobial resistance; Genomics; Respiratory tract infections; Structural bioinformatics; Systems biology; Therapeutics.

Publication types

  • Review

MeSH terms

  • Anti-Bacterial Agents* / pharmacology
  • Anti-Bacterial Agents* / therapeutic use
  • Bacteria / classification
  • Bacteria / drug effects
  • Bacteria / genetics
  • Bacterial Infections / drug therapy
  • Bacterial Infections / microbiology
  • Drug Resistance, Bacterial
  • Humans
  • Respiratory Tract Infections* / drug therapy
  • Respiratory Tract Infections* / microbiology
  • Virulence

Substances

  • Anti-Bacterial Agents