Baby's first toxin.

Clostridioides difficile toxin restructures early-life intestinal tissue development in a way that persists into adulthood, as shown in a recent Science study.

• Why it matters: Early-life colonization by enteric pathogens has unclear long-term consequences, limiting understanding of how early exposures shape adult intestinal biology.
• What they did: Semon et al. investigated how exposure to Clostridioides difficile toxin affects early intestinal tissue development, then assessed whether those changes remain after early life.
• The result: The toxin-linked tissue restructuring persists into adulthood, implying early enteric toxin exposure can leave durable marks on intestinal development.

AI summary of the abstract · may contain errors · not medical advice · read the paper.