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14.12 - 06:33
Scientists find ‘stealth’ version of Omicron not identifiable with PCR test
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Scientists have identified a “stealth” version of the Omicron variant which cannot be detected with the routine tests that public health officials are using to track its spread around the world.
The stealth variant has many mutations in common with standard Omicron, but it lacks a particular genetic change that allows lab-based PCR tests to be used as a rough and ready means of flagging up probable cases.
Researchers say it is too early to know whether the new form of Omicron will spread in the same way as the standard Omicron variant, but that the “stealthy” version is genetically distinct and so may well behave differently.
The stealth variant was first spotted among Covid virus genomes submitted in recent days from South Africa, Australia
Read more on theguardian.comAbout this in other media
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COVID in Europe: Denmark, Norway and the UK introduce new measures to combat Omicron spread euronews.com /3 years ago
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