What is "positivity rate"??? Seriously, I want to know.
There is no explanation on the state dash board:
How is it different from cases per 100K?
Who is being tested? How many? What is the testing criteria?? What kind of test??
IF we are talking PCR blood test and look for antibodies then eventually the positivity rate will be close to 100%.
Why are the number of cases per 100K going down while "positivity" goes up??
If you choose a population that is likely to be infected, then test them, you can get any answer you want. IF you picked a few at risk people and tested then you would get a higher than representative of the general population. It looks like they are cherry picking data from a category that was optimized, or just invented, to give an ominous result. The trouble is we do not test the general population so, we have no idea of the actual facts.
There is no explanation on the state dash board:
How is it different from cases per 100K?
Who is being tested? How many? What is the testing criteria?? What kind of test??
IF we are talking PCR blood test and look for antibodies then eventually the positivity rate will be close to 100%.
Why are the number of cases per 100K going down while "positivity" goes up??
If you choose a population that is likely to be infected, then test them, you can get any answer you want. IF you picked a few at risk people and tested then you would get a higher than representative of the general population. It looks like they are cherry picking data from a category that was optimized, or just invented, to give an ominous result. The trouble is we do not test the general population so, we have no idea of the actual facts.

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