Shigella Bacteria (IMAGE) Rice University Caption Rice University scientists have built a model to predict how long, on average, it takes to eradicate bacterial infections like those caused by shigella, above, with antibiotics. The model could help doctors fight resistance by prescribing antibiotics that neither over- or under-dose a patient. Credit U.S. Centers for Disease Control and Prevention Usage Restrictions None 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.