Gut microbiota in children vaccinated with rotavirus vaccine.

To assess the effect that the rotavirus vaccine RotaTeq may have on the gut microbiota, this study searched for differences in intestinal bacterial composition between vaccinated and unvaccinated children. Bacterial diversity in fecal samples was evaluated by pyrosequencing of the 16S rRNA gene and taxonomic analyses using bioinformatics tools. No evidence of such differences was observed.