
You shoulda seen "American Experience" on PBS last night.
It was about polio, "March of Dimes", Jonas Salk, Albert Sabin, etc culminating in the late in the 1950's. After testing on monkeys, Salk tested kids in orphanages and mental/handicapped institutions. Things like informed consent was an unknown concept.
When the dead virus vaccine was deployed, a California manufacturer screwed up and shipped vaccine with a live virus. They caused polio and even deaths. That resulted in a hiatus in the US immunization program.
Perhaps you had to have been there, but the polio scare was number two to only the Red scare in the 1950's.
Alex