5 ms·
>a false positive for an antigen rtPCR is essentially impossiblee. The primers are extremely specific and can't find something that isn't there. I read somewhe
by logicallee 7y ago
>a false positive for an antigen rtPCR is essentially impossiblee. The primers are extremely specific and can't find something that isn't there.
I read somewhere that among the reasons for a false positive would be cross-contamination among samples.
Just because the primers find something in the sample, doesn't mean that that something isn't in fact merely a bit of cross-contamination from another, true positive, sample.
- xscott 7y agoI was watching this video earlier tonight: https://youtu.be/Vat-PKdQ13A?t=30 https://youtu.be/Vat-PKdQ13A?t=30 That looked like some really sloppy lab technique, and I hope that's not how it is really done in practice. If real tests are done by hand like this, with distractions, open air, and no mask on the technicians, it's easy to imagine false positives.