The Persistence of Folk Wisdom--Memes?

The current effort to vaccinate for Covid-19 has run into resistance, particularly among black Americans.  The conventional wisdom explains this by the past history of science mistreating blacks, in particular the Tuskegee experiment.

The participants in the study are all dead now, the last one dying 15 years ago.  The study itself ended in 1972.

Assuming the conventional wisdom is correct, the extent to which people have become aware of it, and the duration of the time since the ending is striking. I wonder if sociologists have studied the factors which account for this penetration of the public consciousness, particularly in comparison with other memes.

{Here's further discussion of the issue--perhaps the meme lives longer in the minds of the intellectuals than the lay person?]