One Health Education (IMAGE) University of California - Davis Caption Risa Pesapane and Maria Sanchez of UC Davis prepare to analyze DNA to identify where ticks had fed. Credit Mary Straub/UC Davis Usage Restrictions Provide credit. 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.