Renato Dulbecco, an Italian-born virologist who shared the 1975 Nobel Prize for medicine or physiology for providing crucial early discoveries into the genetic nature of cancer, died Feb. 19 at his home in La Jolla, Calif. He was four days shy of his 98th birthday.
The death from undisclosed causes was announced by the Salk Institute for Biological Studies, the La Jolla-based research center where Dr. Dulbecco had been a founding fellow in 1963 and later president.
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