-
Well, empirical observation in time of plague
-
gave rise not only to spontaneous reactions
-
that we've described but also to a new idea
-
that began to spread alongside medical orthodoxy--
-
a new idea, the idea of contagion.
-
That somehow the plague spread in an unspecified manner
-
from person to person.
-
This idea was largely rejected for centuries
-
by learned official medicine,
-
which clung to the older idea of miasmatism
-
of Galen and his system.
-
But it became an important idea in popular culture,