Pregnant Woman (IMAGE) University of Sydney Caption Pregnancy outcomes and infant immunity have been linked to gut bacteria. Credit Pixabay user:StockSnap Usage Restrictions Pixabay license: https://pixabay.com/service/license/ License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.