Test positivity rate: How this one figure explains that the US isn't doing enough testing yet

Test positivity rates measure the success of a testing program. Even though the US performs a huge number of tests, high test positivity rates across the country show that that it still isn't enough.
Read more: https://theconversation.com/test-positivity-rate-how-this-one-figure-explains-that-the-us-isnt-doing-enough-testing-yet-143340?source=Snapzu