Interview in 1998 with Italian-American virologist Renato Dulbecco, who came to Caltech in 1949 as a senior research fellow at the invitation of Max Delbrück, joined the faculty of the Biology Division, and remained at Caltech until 1962. In this interview, he recalls his education at the University of Turin (MD 1936) in his native Italy, working with Giuseppe Levi and Rita Levi-Montalcini; his experiences during the war years in Italy; his arrival in the United States in 1947 to work with Salvador Luria on phage at Indiana University, where James Watson was a colleague; his meeting with Delbrück at Cold Spring Harbor; and his arrival at Caltech and eventual switch to the study of animal viruses. Discusses his work with western equine enc...