Dr. Ziv’s research is focused on identifying genetic factors that underlie complex traits in humans. It combines principles from population genetics and epidemiology, particularly on diseases in populations of mixed ancestry such as African Americans and Latinos. His group is most interested in understanding susceptibility to cancer and response to cancer treatment. Current projects include identifying loci that influence breast cancer susceptibility among Latinas and identifying loci that influence mammographic breast density, a strong risk factor for breast cancer. They have also studied a variety of benign and malignant hematological conditions and study genetic factors that affect multiple myeloma.