Dennis E. Hruby, Ph.D., Executive Vice President and Chief Scientific Officer Dennis E. Hruby, Ph.D., has been with SIGA Technologies since January 1996, serving as the Chief Scientific Officer since June 2000. Dr. Hruby received his Ph.D. in Microbiology from the University of Colorado Medical Center and his undergraduate degree in Microbiology from Oregon State University. He was a faculty member at Oregon State University for 27 years serving in a number of capacities, including Director of the Molecular and Cellular Biology Program and Chairman of the Microbiology Department. Dr. Hruby specializes in poxviruses, virology and anti-infective research. He has published more than 210 manuscripts/chapters, 400 abstracts and currently holds approximately 200 US and international patents for methods of use, compounds, and pharmaceutical compositions. He is a member of a number of editorial boards and has served on numerous federal grant panels.