Group B Streptococcus antibiotics treatment during pregnancy and the risk of four neurodevelopmental outcomes in Swedish children
Unnur Gudnadottir, Sheila Orwa, Thi Cam Tu Ha, Martin J Blaser, Sandra Guedes, Kelle Moley, Anders Elfvin, Kristin Wannerberger, Nele Brusselaers · 2026
Read Group B Streptococcus antibiotics treatment during pregnancy and the risk of four neurodevelopmental outcomes in Swedish children by Unnur Gudnadottir, Sheila Orwa, Thi Cam Tu Ha, Martin J Blaser, Sandra Guedes, Kelle Moley, Anders Elfvin, Kristin Wannerberger, Nele Brusselaers (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/PMC13260725.txt.
Description
Unnur Gudnadottir leads a 2026 cohort study of antibiotics given in pregnancy for Group B Streptococcus, a common bacterium that can harm newborns. The study included all live births in Sweden from 2006 to 2016, a total of 1,066,777 births, using national register data. It tested links between seven first-line antibiotics for this infection and four child outcomes: intellectual disability, cerebral palsy, autism spectrum disorder, and attention deficit hyperactivity disorder.
Drugs for this infection were prescribed to 22.1 percent of mothers. No link was found with intellectual disability. Modest links appeared for cerebral palsy, autism, and ADHD, with adjusted hazard ratios of 1.17 for cerebral palsy, 1.12 for autism, and 1.17 for ADHD in the adjusted models. Results depended on the model used, and the authors warn that the infection itself or other hidden factors could explain the links. They call for further study and careful stewardship of these drugs.
Catalog record
| CREATOR | Unnur Gudnadottir, Sheila Orwa, Thi Cam Tu Ha, Martin J Blaser, Sandra Guedes, Kelle Moley, Anders Elfvin, Kristin Wannerberger, Nele Brusselaers |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 40861 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |