"Raised without Antibiotics" (IMAGE) George Washington University Caption How confident can shoppers be that they are getting beef products from cattle that have been raised without antibiotics? Not very, according to a new study published today in Science. Credit GW Usage Restrictions Use with permission from GW License Original 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.