Bachelor of Science, Bristol University, 1984. Doctor of Philosophy, University Nebraska, 1987.
Researcher, Columbia University, New York City, 1987-1988; postdoctoral fellow, Harvard School Public Health, Boston, 1988-1990; assistant professor, U. Rochester Medical Center, New York, 1990-1995; associate professor, U. Rochester Medical Center, New York, since 1995.
Board of directors Rochester Autonomous System Networks for United Nations, since 1993. Group leader Results Group, Rochester, since 1990. Student mentor Rochester Alliance Promoting Science, since 1992.
Member American Society for Microbiology.
Married Donna Day Jackel, September 17, 1990.