Blood Draw (IMAGE) University of California - San Diego Caption Detecting cancer at its earliest stages from a simple blood draw is the goal of several companies currently developing 'liquid biopsies' to detect circulating human tumor DNA. Now UC San Diego researchers have demonstrated they can determine who has cancer, and what type, based on a readout of microbial DNA found in their blood. Credit Photo credit: MacDill Air Force Base Usage Restrictions Please link photo credit: https://www.macdill.af.mil/News/Photos/igphoto/2000056194/ 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.