Renato Dulbecco was a pioneer in the field of virology, the study of viruses. He began as a practicing physician in the military service of his native Italy during World War II and continued to practice as physician with partisan units fighting the...

Renato Dulbecco was a pioneer in the field of virology, the study of viruses. Dulbecco developed the plaque assay technique which allowed scientists to quantify the number of viral units in a laboratory culture, thus making possible most of the later...

Marguerite Vogt, a pioneer in the fields of polio and cancer research, died at her home in La Jolla, California, a colleague said Monday. She was 94.Vogt, who continued coming to work at the Salk Institute for Biological Studies until about two years ago, died...

Biologist Marguerite Vogt succeeded by focusing singularly on her goal -- advancing science.She studied how organisms develop, then applied insights to make important strides in polio and cancer research.Several newer drugs and targeted therapies wouldn't exist now, scientists say, had Vogt and a fellow researcher's...

Ralph BernsteinPHILADELPHIA (AP) _ Ralph Bernstein, who peppered coaches and players with tough questions for nearly a half-century while covering the Philadelphia sports scene for The Associated Press, has died. He was 85.Bernstein died Saturday of cancer, said his daughter-in-law, Maureen Bernstein.Bernstein, who lived in...