Diagnosing COVID-19 infection: the danger of over-reliance on positive test results
https://www.medrxiv.org/content/10.1....26.20080911v3
I'd recommend reading the whole thing, but an interesting blurb.
Quote:
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This is based on a widespread belief that positive results in these tests are highly reliable. However, data on PCR-based tests for similar viruses show that PCR-based testing produces enough false positive results to make positive results highly unreliable over a broad range of real-world scenarios.
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