Well, the folks a few miles upriver from me at my alma mater, Pitt (UPMC), have announced they have something that is very promising with the amount of antibodies it is producing in mice. It is the "first study to be published after critique from fellow scientists at outside institutions," which sounds like some level of peer review. Still a ways to go, no doubt.
As a numbers guy (mechanical engineer), I've been trying to find good statistics (keeping Mark Twain's comment in mind...). It seems that many curves just tally how many people have had it, not how many cases are active or contagious, though that last one would be real squishy. But even the Johns Hopkins maps show many areas with zero recovered, and that seems absurd for four weeks or more into it. PA is still showing an exponential increase in the total count, and even dropping out the numbers from two weeks back doesn't change it too much; to make a substantial difference you have to drop out cases after a week and I doubt that is warranted. Statewide, we're at 1 in 1,000 people having had it at some point (confirmed of course). But the per-capita rate is much lower in this area.