1. Cases ⬇️ + tests ⬆️ = virus likely dying off.
— Peter Walker (@PeterJ_Walker) May 27, 2020
2. Cases ⬆️ + tests ⬆️, % pos ⬆️ = virus likely growing.
3. Cases ⬆️ + tests ⬆️, % pos ⬇️ = virus maybe growing, maybe not.
4. Cases ⬇️ + tests ⬇️ = test more to know!
Many states are 3 now. % pos is no silver bullet.