Professor, Department of Microbiology and Molecular Genetics Pittsburgh Foundation Chair for Drug Development and Immunotherapy Co-Leader, Cancer Virology Program, UPMC Hillman Cancer Center University of Pittsburgh School of Medicine 2018,7-present University of Pittsburgh, Professor 2011,7-2018,7: University of Southern California, Professor 1997,4-2011,7: University of Text Health Science Center at San Antonio, from Assistant Professor to Professor