In this week’s Medical Discovery News column: Maurice R. Hilleman may have saved more lives than any other scientist in the 20th century — he created or contributed to the development of more than 25 vaccines. MDN is hosted by professors David Niesel at UTMB and Norbert Herzog at Quinnipiac University. Learn more at www.medicaldiscoverynews.com. The column also appears in the Abilene Reporter-News.