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A comment on Omicron variant more resistant to vaccine but causes less severe Covid: study. Parent comment

Re:Omicron variant more resistant to vaccine but causes less... by dtech on Tuesday December 14, 2021 @11:38AM (#29553581)
> I'm surprised we don't see Covid mutations that invalidate PCR tests

PCR tests for RNA or DNA, that's not something a mutation can change. I don't know for Covid, but usually a PCR test targets something fundamental & stable. That might need to be updated with new variants.

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Re:Omicron variant more resistant to vaccine but causes less... by chki on Tuesday December 14, 2021 @12:03PM (#29554047)
Isn't that the only thing a mutation can change? What is mutating in the virus if it's not the DNA?
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Re:Omicron variant more resistant to vaccine but causes less... by rich_sasha on Tuesday December 14, 2021 @11:59AM (#29553973)
They test for particular fragments, not the whole thin. 3 fragments usually in the UK.
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