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Another interpretation to explain high positivity rates is that physicians diagnostic skill increases. They test fewer patients whom they believe have a low probability of having disease. This may be particularly true in a resource poor area either because patients can’t afford the test or it isn’t easily available.

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That’s a good point. I think my personal batting average in MA last year was 2 of 3. Most of my colleagues tested 0-1 people. But I knew to look beyond the rash.

That said, you’re not going to get 65% positivity on anything acute. Ya know?

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Very good data & citations Dr. Faust, as usual. ✍️ Thx.

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Glad it was useful! Sometimes posts like these are less “popular” than others which are widely read/shared beyond the subscribers. But people do miss these ones when I don’t have time to do them. Always a balance. Thank you for being here!

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