Issues beyond resistance: inadequate antibiotic therapy and bacterial hypervirulence

Area of Science:

• Microbiology
• Infectious Diseases
• Pharmacology

Background:

• Antibiotic administration is essential for treating infections but carries risks.
• Complications include drug toxicities, antimicrobial resistance, and microbiota disruption.
• Emerging evidence highlights pathogen-mediated complications due to antibiotic exposure.

Purpose of the Study:

• To explore the less recognized complications of antibiotic therapy.
• To investigate how antibiotics can alter pathogen virulence factors.
• To emphasize the need for improved understanding of antibiotic-microbe interactions.

Main Methods:

• Review of current scientific literature on antibiotic-pathogen interactions.
• Analysis of evidence linking antibiotic exposure to changes in pathogen virulence.
• Exploration of the clinical significance of these pathogen alterations.

Main Results:

• Antibiotics can induce changes in pathogens, affecting toxins, invasins, adhesins, biofilm, and resistance.
• These antibiotic-induced pathogen modifications may lead to a worsening clinical course.
• The clinical impact of these virulence changes requires further investigation.

Conclusions:

• Antibiotic therapy may inadvertently enhance pathogen virulence, complicating disease management.
• Further research into antibiotic-microbe interactions is critical for refining treatment strategies.
• Adjusting antibiotic regimens and enhancing antimicrobial stewardship are necessary to prevent pathogen hypervirulence.