This is a very misleading statistic you're providing, especially to people who may not be as data-oriented as us, and also a very broad assumption that definitely doesn't hold. Case positivity is a real number based on number of tests, it's not making inferences on things like the rates among those who haven't been tested.

I understand this is your site and you built it, and it's hard to let that go. But, I would implore you to rethink it until you get the data needed to add real insights to the conversations, not misleading stats based on what you have now.