576-Global Genomic Atlas of Infant Bifidobacterium infantis

Paper Talk · Mar 3, 2026 · 24m

This research presents a comprehensive genomic atlas of Bifidobacterium infantis and B. longum, proposing that they be reclassified as distinct species due to significant evolutionary and functional differences. By analyzing thousands of genomes from both industrialized and non-industrialized regions, the authors found that B. infantis strains exhibit extreme geographic stratification and specialize in metabolizing diverse breast milk components beyond just sugars. In contrast, current commercial probiotics often fail to persist in infants because they lack the local metabolic adaptations…