Reply To: Should People Test More, or Less?

Syag, on the other hand certain professions like health care workers, and perhaps yellow zone schools, are required to test frequently, resulting in repeated negatives. The point is not that positivity rate is a perfect metric, but that it helps spot trends. If an area was at 1% and has steadily increased to 6% over the course of several weeks, and neighboring areas have stayed at 1%, then it’s a concern.