Nothing is ever "accepted by all in the medical or scientific community", that's an impossible standard. Of course the models that we have aren't perfect and th

Nothing is ever "accepted by all in the medical or scientific community", that's an impossible standard. Of course the models that we have aren't perfect and there can (and will) be mistakes, but most of the community agrees that they are the best we have at the moment. I'm not sure what you mean by "over-simplified non-linear models", please elaborate. I would say in general though that the problem is not the models but the parameters - this is such a new virus that modellers have to make various assumptions about things that we can't possibly know yet.