Perhaps unsurprisingly for a blog called "lockdown skeptics", this piece makes basic mathematical and epidemiological mistakes. In fact, very few positive COVID-19 tests are falsehttps://twitter.com/JuliaHB1/status/1307586325663698945 …
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Oh no apologies, I was using false positive here to mean 1-positive predictive value. So out of the ~10 cases a week in QLD, maybe 1 false positive that's later corrected
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What about false negatives? Is that rate worrisome at all?
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False negatives are an issue in some aspects yes. False negative rates are high immediately after exposure, so people can receive a negative result in the first day or two of infection and think that they don't have COVID-19
End of conversation
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Some parts of the US probably fit that bill.
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Also - if the false positive test rate is that high, then the number of positive results would not really change with the epidemic. The number of positive results would basically be a constant fraction of the number of tests.
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