Tom Peacock, a virologist at Imperial College London, said that the Cypriot delta-chron sequences reported by several major media appear to be quite clearly contaminated. , who announced the discovery of a new variant, however, says that this hypothesis is ruled out.
Is it really just a scarecrow?
“When the new variants pass through the sequencing laboratory, contamination is not so unusual, it can cause very small volumes of fluid. Usually these relatively clearly contaminated sequences are not reported by the big media, “ Peacock said on Twitter on Sunday.
Small update: the Cypriot ‘Deltacron’ sequences reported by several large media outlets look to be quite clearly contamination – they do not cluster on a phylogenetic tree and have a whole Artic primer sequencing amplicon of Omicron in an otherwise Delta backbone.
– Tom Peacock (@PeacockFlu) January 8, 2022
According to him, omicron probably did not circulate long enough in a large enough population to produce a real recombinant.
These tend to appear only a few weeks to months after a substantial co-circulation has taken place. “We only have Omikron for a few weeks, I really doubt there are any predominant recombinants already,” he said.
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