As each child entered the room, Dr. Salk’s secretary handed him a test tube bearing the youngster’s name and control numbers. Time and again, in answer to an anxious “Wotta they gonna do?” ...

Salk was just a toddler. Two brothers would be born later, but at the time just he and his mother and father, who worked in a garment factory, lived in a small apartment on Manhattan’s East ...

At the end of 1959, almost half the U.S. population had received a Salk shot, and already the occurrence of polio had dropped 80%. By the same time, Merck, Sharp, and Dohme Research Laboratories ...

AHEAD OF HIS TIME: Colleagues remember Jonas Salk for carrying the courage of his scientific convictions. Referring to Salk's work both with the polio vaccine and, in later years, with the AIDS ...