The genetic changes found in the new Omicron variant show that it could be passed more easily from person to person than Delta, according to the latest threat assessment from the United Kingdom’s Health Security Agency.
, from the Network for Genomic Surveillance in South Africa, supports that assessment. It shows that Omicron has quickly outpaced Delta in South Africa. In October, 80% of all coronavirus samples sequenced in that country were from the Delta lineage. Omicron wasn’t even part of the mix. In November, 75% of sequenced viruses have been Omicron, with 22% Delta.
In the new U.K. report, scientists write that Omicron’s mutations appear to help the virus replicate more quickly in the body and may help it bind more tightly to the ACE2 receptor on human cells.affinity to a much greater extent than that seen for any other variant,” the report says.
Based on the same structural modeling, it’s highly likely that Omicron has escaped at least some of the protection people get from COVID-19 , although laboratory testing and epidemiological studies are needed before we can know that for sure.may not work as well against this variant, but lab tests are needed for clarity on this point, too.U.K. Health Security Agency: “Risk Assessment for SARS-CoV-2 Variant: Omicron,” Dec. 3, 2021.© 2021 WebMD, LLC. All rights reserved.
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