Dr. Perelson received his B.S. degrees in Life Science and Electrical Engineering from MIT in 1967, and a Ph.D. in Biophysics under the supervision of Aharon Katchalsky-Katzir, from UC Berkeley in 1972. He was Acting Assistant Professor, Division of Medical Physics, Berkeley, in 1973 and a postdoctoral fellow at the Department of Chemical Engineering, University of Minnesota, in 1974. He was a staff member in the Theoretical Biology and Biophysics Group at Los Alamos National Laboratory from 1974 - 1991, a Laboratory Fellow from 1991 - 2002, head of the Theoretical Biology and Biophysics Group between 1995 - 2001, and is currently a Los Alamos National Laboratory Senior Fellow. He spent the 1978 and 1979 academic years at Brown University as an Assistant Professor of Medical Sciences in the Division of Biology and Medicine and the Lefschetz Center for Dynamical Systems, was a visiting scientist at the Mathematical Institute, Oxford University in 1986 and a visiting professor of Physics at Ecole Normale Superieure, Paris in 1990, and the University of Paris VII in 1992. He is also a member of the Science Board and is an External Professor at the Santa Fe Institute. He is also an adjunct professor of Bioinformatics at Boston University, and adjunct professor of Biostatistics at the University of Rochester School of Medicine and an adjunct professor of Biology at the University of New Mexico.