Andy Tao, Purdue University 2 (IMAGE) Purdue University Caption Andy Tao, a professor at Purdue University's College of Agriculture, discovers a protein that could make cancer detection possible through a blood test Credit Credit: Purdue Agricultural Communications/Tom Campbell Usage Restrictions Credit: Purdue Agricultural Communications/Tom Campbell 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.