Just reading a new book* about the life of Jonas Salk, famous for being first to develop a successful polio vaccine in the mid 50’s. As a child in NY watching Armistice Day parades at the end of WWI he never forgot the images of amputee soldiers marching with a missing arm or a leg. That same year he also watched as horse-drawn wagons rolled down the street filled with coffins of the victims of an epic influenza epidemic. He observed children in schoolyards with leg braces from American’s first polio virus pandemic in1916. He resolved right then to do...