Lee Salk Lee Salk Lee Salk (December 22, 1926 - May 2, 1992) was a child psychologist and author who is credited with discovering the calming effect the sound of a heartbeat has on infants. During the last third of his life, Dr. Salk made a great deal of public appearances on various television shows and lecture halls. He used these venues to dispense advice on how to rear children, especially infants. Salk was the younger son of Russian Jewish immigrants, Dora (Press) and Daniel Salk. He was born and reared in New York. Jonas Salk, inventor of the polio vaccine, was
Influenza vaccine sera (chiefly against what we now call "Hemophilus influenzae"—a name derived from the fact that it was originally considered the etiological agent—and several types of pneumococci). Only one therapeutic measure, transfusing blood from recovered patients to new victims, showed any hint of success." In 1931, viral growth in embryonated hens' eggs was reported by Ernest William Goodpasture and colleagues at Vanderbilt University. The work was extended to growth of influenza virus by several workers, including Thomas Francis, Jonas Salk, Wilson Smith and Macfarlane Burnet, leading to the first experimental influenza vaccines. In the 1940s, the US military developed the first