Culture Proven Multi-Bacterial Gastrointestinal Infections are Rare in Children

Area of Science:

• Pediatric infectious diseases
• Microbiology
• Clinical diagnostics

Background:

• Gastrointestinal infections are common in children.
• Gut microbiome and immune system maturation influence infection susceptibility.
• Antibiotic use can disrupt the gut microbiome.

Purpose of the Study:

• To determine the positivity rates of pediatric stool cultures based on age.
• To investigate the occurrence of multipositive stool cultures and their association with patient age and antibiotic history.
• To understand the implications for gut defense maturation and antibiotic stewardship.

Main Methods:

• Analysis of 6256 pediatric stool cultures.
• Categorization of results by positivity (single vs. multipositive).
• Correlation of positivity rates with patient age and prior antibiotic exposure.

Main Results:

• Overall positivity rate of 11.4% in pediatric stool cultures.
• Positivity rates decreased with increasing patient age.
• Multipositive cultures (0.4%) exclusively found in children ≤3.1 years old.
• All children with multipositive cultures had a history of antibiotic use.

Conclusions:

• Pediatric gut defense mechanisms mature with age.
• Early childhood antibiotic exposure is associated with increased risk of multipositive stool cultures.
• Prudent antibiotic stewardship is crucial in early childhood to prevent gut dysbiosis and infection.