Dr. Sarah Dodd (IMAGE) University of Guelph Caption Lead author Dr. Sarah Dodd, a PhD candidate at Ontario Veterinary College's Department of Population Medicine Credit UNIVERSITY OF GUELPH 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.