Preface: I'm posting this for Ward to look at as a continuation of the discussion from the Covid statistics thread.... so go read that before jumping my bones.
https://www.insidescience.org/news/link-between-imperfect-vaccines-and-disease
https://epubs.siam.org/doi/abs/10.1137/140956695
I do find it interesting that all imperfect vaccine types require the same critical ratio to eliminate a disease. This is just data modeling and predicting, so it's not to prove anything.
https://epubs.siam.org/page/EpidemiologyCollection
ooooo learnins time.
edit: why does it say Error.. cookies etc.?