Gastrointestinal Microbiome Disruption and Antibiotic-Associated Diarrhea in Children Receiving Antibiotic Therapy for Community-Acquired Pneumonia

Authors

Document Type

Journal Article

Publication Date

3-6-2022

Journal

The Journal of infectious diseases

DOI

10.1093/infdis/jiac082

Keywords

Antibiotic-associated diarrhea; children; community-acquired pneumonia; microbiota

Abstract

Antibiotic-associated diarrhea (AAD) is a common side effect of antibiotics. We examined the gastrointestinal microbiota in children treated with beta-lactams for community-acquired pneumonia. Data were from 66 children (n=198 samples), ages 6-71 months, enrolled in the SCOUT-CAP trial (NCT02891915). AAD was defined as ≥1 day of diarrhea. Stool samples were collected on study days 1, 6-10, and 19-25. Samples were analyzed using 16s-rRNA gene sequencing to identify associations between patient characteristics, microbiota characteristics, and AAD (yes/no). Nineteen (29%) children developed AAD. Microbiota compositional profiles differed between AAD groups (PERMANOVA, P < 0.03) and across visits (P < 0.001). Children with higher baseline relative abundances of two Bacteroides species were less likely to experience AAD. Higher baseline abundance of Lachnospiraceae and amino acid biosynthesis pathways were associated with AAD. Children in the AAD group experienced prolonged dysbiosis (P < 0.05). Specific gastrointestinal microbiota profiles are associated with AAD in children.

Department

Biostatistics and Bioinformatics

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