Dr. Duffey is born in Oakland, California to Norman David and Saphrona Carol Duffey.
Dr. Duffey receives a Bachelor of Arts from San Jose State University.
Dr. Duffey studies postgraduate courses at the University of California.
Dr. Duffey receives a Doctor of Philosophy from the University of Michigan.
Dr. Duffey becomes an assistant professor of research at the University of Michigan Medical School.
Dr. Duffey becomes an assistant professor of microbiology at the University of Texas Health Science Center.
Dr. Duffey becomes a research scientist for the California Department of Health Care Services in Berkeley, California.
Dr. Duffey becomes a member of the Governor’s Task Force on Biotechnology in Sacramento, California.