Elon Musk is the Jon Snow of molecular biology.
https://twitter.com/elonmusk/status/1327224089451196420
In case you don't know molecular biology, PCR detects DNA or cDNA (made from RNA).
It can't detect proteins, and imagining that *every biomarker* is *always detectable* in *every sample* is a fundamental misunderstanding demonstrating lack of understanding in this field.
It can't detect proteins, and imagining that *every biomarker* is *always detectable* in *every sample* is a fundamental misunderstanding demonstrating lack of understanding in this field.
We're careful to say we detected viral *RNA*in a nasopharyngeal sample, which correlates to infectious virus most, but not all of the time.
Same with protein antigen or antibody: you never get a full picture, just strong clues.
Same with protein antigen or antibody: you never get a full picture, just strong clues.
"I've developed a test for bears walking on sidewalks OR streets in this city, and it remains negative, therefore there are no bears anywhere in the city and we can all relax."
Meanwhile, in the sewers:
Meanwhile, in the sewers:
"Okay, we've adjusted our test to include sewer bears. We can now say with confidence that there are no bears in the streets, on sidewalks, OR in sewers. We are finally, completely certainly bear-free"
Meanwhile, at Hover Bear Headquarters:
Meanwhile, at Hover Bear Headquarters:
• • •
Missing some Tweet in this thread? You can try to
force a refresh
