Not a surprise according to Bayes’ Theorem
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According to the NYT and many other sources…
As part of a screening by the White House, Mr. DeWine first received an antigen test, a newer type of test that provides faster results but is less accurate than traditional laboratory testing.
He tested positive for Covid-19
He was later twice-tested using a more standard procedure known as polymerase chain reaction, or P.C.R., an accurate but time-intensive method that requires samples to be processed at a laboratory.
That test result was negative for the Covid-19.
DeWine’s experience is a classic “false positive” … to be expected based on Bayes’ (Statistical) Theorem.
Let me explain…
The Homa Files 