The Cancer Vaccine Institute at the University of Washington is a multidisciplinary group of investigators focused on the diagnosis, prevention, and treatment of cancer with novel, immune-based therapies. Our mission is to diagnose, prevent and treat cancer by developing immune system-based approaches, ones that bring the power of precision medicine and cancer immunology out of the lab and into the lives of people with cancer or at high risk for cancer. We are especially focused on developing vaccines to prevent cancers responsible for millions of deaths and enormous healthcare costs — breast, colon, ovarian, prostate, pancreatic, and lung cancers — and to prevent cancer relapse. Cancer vaccines are ideally suited to both primary and secondary cancer prevention.