Escherichia coli as a Multifaceted Pathogenic and Versatile Bacterium

Area of Science:

• Microbiology
• Evolutionary Biology
• Infectious Diseases

Background:

• Escherichia coli exhibits significant genetic plasticity, enabling adaptation from avirulent to highly pathogenic forms.
• This adaptability facilitates the emergence of hybrid pathogenic E. coli (HyPEC) and contributes to antimicrobial resistance.
• Emergent HyPEC strains, like O104:H4, pose significant public health threats due to their virulence factors, such as Shiga-toxin.

Purpose of the Study:

• To review the characteristics of classic and hybrid pathogenic E. coli.
• To discuss the rise of antimicrobial resistance in E. coli within the context of its genetic versatility.
• To highlight the urgent need for alternative therapeutic strategies against E. coli infections.

Main Methods:

• Literature review and synthesis of existing data on E. coli pathogenicity and resistance.
• Analysis of genetic mechanisms underlying E. coli adaptation and hybrid formation.
• Discussion of current and potential alternative therapies.

Main Results:

• E. coli's genetic plasticity is a key driver for the emergence of diverse strains, including dangerous HyPEC.
• Antimicrobial resistance is escalating in E. coli, exacerbated by its multifaceted genetic capabilities.
• Specific HyPEC strains, like O104:H4, demonstrate potent virulence.

Conclusions:

• Hybrid pathogenic E. coli represent a growing threat requiring focused attention.
• The adaptability and resistance of E. coli necessitate the development of novel treatment approaches.
• Advancing alternative therapies is essential for effective management of E. coli infections.