Bill Gates, co-chair of the Bill and Melinda Gates Foundation, right, speaks with descendants of important people in the fight against polio in New York Monday, Jan. 31, 2011. Cathy Hively, second ... more 
Bill Gates, co-chair of the Bill and Melinda Gates Foundation, right, speaks with descendants of important people in the fight against polio in New York Monday, Jan. 31, 2011. Cathy Hively, second from right, is the granddaughter of Basil O'Connor, who helped to fight polio through the March of Dimes and other foundations, Deborah Sabin, second from left, is the daughter of Albert Sabin, who discovered the oral polio vaccine, and Peter Salk, is the son of Jonas Salk, the discoverer of the first polio vaccine. less 
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Associated Press | Photo By Seth Wenig
Tue, Feb 1, 2011 12:01 PM EST